1/5 + 1/4 + 1/3 =
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>, <, = ?
| 4 + 1 … 4 | 5 – 1 … 5 | 3 + 0 … 3 |
| 4 + 1 … 5 | 5 – 0 … 5 | 3 + 1 … 4 |
| 4 – 1 … 4 | 3 + 1 … 3 | 3 + 1 … 5 |
Lời giải chi tiết:
| 4 + 1 > 4 | 5 – 1 < 5 | 3 + 0 = 3 |
| 4 + 1 = 5 | 5 – 0 = 5 | 3 + 1 = 4 |
| 4 – 1 < 4 | 3 + 1 > 3 | 3 + 1 < 5 |
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Dễ nhỉ !
Ai đồng tình thì cho mình nha !
| 4 + 1 > 4 | 5 – 1 < 5 | 3 + 0 = 3 |
| 4 + 1 = 5 | 5 – 0 = 5 | 3 + 1 = 4 |
| 4 – 1 < 4 | 3 + 1 > 3 | 3 + 1 < 5 |
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a,1/3 .(x-2/5)=3/4 b, 7/3:(x-2/3)=4/5 c,1/3.(x-2/5)=4/5 d, 2/3.(x-1/2)-1/4.(x-2/5)=7/3 e,3/7 .(x-2/3)+1/2=5/4.(x-2) f,1/2.(x-3)+1/3.(x-4)+1/4.(x-5)=1/5 g,[2/3.(x-1/2)-4/5]:(x-1/3)=21/5 h, {x-[1/2.(x-3)+11/5]}:(x-1/2)=3/5 i,x.(x-2/5)-(x+2).x+11/4=4/3
a: =>x-2/5=3/4:1/3=3/4*3=9/4
=>x=9/4+2/5=45/20+8/20=53/20
b: =>x-2/3=7/3:4/5=7/3*5/4=35/12
=>x=35/12+2/3=43/12
c: 1/3(x-2/5)=4/5
=>x-2/5=4/5*3=12/5
=>x=12/5+2/5=14/5
d: =>2/3x-1/3-1/4x+1/10=7/3
=>5/12x-7/30=7/3
=>5/12x=7/3+7/30=77/30
=>x=77/30:5/12=154/25
e: \(\Leftrightarrow x\cdot\dfrac{3}{7}-\dfrac{2}{7}+\dfrac{1}{2}-\dfrac{5}{4}x+\dfrac{5}{2}=0\)
=>\(x\cdot\dfrac{-23}{28}=\dfrac{2}{7}-3=\dfrac{-19}{7}\)
=>x=19/7:23/28=76/23
f: =>1/2x-3/2+1/3x-4/3+1/4x-5/4=1/5
=>13/12x=1/5+3/2+4/3+5/4=257/60
=>x=257/65
i: =>x^2-2/5x-x^2-2x+11/4=4/3
=>-12/5x=4/3-11/4=-17/12
=>x=17/12:12/5=85/144
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bài 1:
1/4 + 2/3 2/7 + 2/3 2/5 + 1/3 2/3 + 1/2 1/3 + 3/5 4/5 + 1/3
1/8 + 3/4 1/36 + 5/12 1/3 + 1/6 + 1/18.
bài 2:
15/16 - 3/16 17/18 - 5/6 3/4 - 4/9 1/2 - 2/5 5/6 - 3/10 3-1/3
4/5 - 1/10 5/2 - 1 5/8 - 2/5.
1+1+1+1+1+1+1=?
2+2+2+2+2+2+2=?
3+3+3+3+3+3+3=?
4+4+4+4+4+4+4=?
5+5+5+5+5+5=?
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Câu 15 A= 1/3-3/4+3/5+1/2007-1/36+1/25-2/9
Câu 16 A=1/3- 3/4- (-3/5)+ 1/64- 2/9- 1/36+ 1/15
Câu 17 A=1/2- 2/3+ 3/4- 4/5+ 5/6- 6/7- 5/6+ 4/5- 3/4+ 2/3- 1/2
15: A= 1/3-3/4+3/5+1/2007-1/36+1/15-2/9
Sửa đề:
A=-3/4-2/9-1/36+1/3+3/5+1/15+1/2007
=-27/36-8/36-1/36+5/15+9/15+1/15+1/2007
=-1+1+1/2007=1/2007
16:
\(A=\dfrac{1}{3}+\dfrac{3}{5}+\dfrac{1}{15}-\dfrac{3}{4}-\dfrac{2}{9}-\dfrac{1}{36}+\dfrac{1}{64}\)
\(=\dfrac{5+9+1}{15}+\dfrac{-27-8-1}{36}+\dfrac{1}{64}\)
=1/64
17:
=1/2-1/2+2/3-2/3+3/4-3/4+4/5-4/5+5/6-5/6-6/7
=-6/7
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Bài 1
a, Tính P=1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+....+1/2012(1+2+3+...+2012)
b,Tìm x thỏa mãn 4^5+4^5+4^5+4^5/3^5+3^5+3^5.6^5+6^5+6^5+6^5+6^5+6^5/2^5+2^5=2^x
Kho..................wa.....................troi.....................thi......................lanh.................ret.......................ai........................tich..........................ung.....................ho........................minh.....................cho....................do....................lanh
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Kho..................wa.....................troi.....................thi......................lanh.................ret.......................ai........................tich..........................ung.....................ho........................minh.....................cho....................do....................lanh
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| 5/-4 | - | 1/-3 | + -5/6 - 4 1/2 ( 4 1/2 là hỗn số ạ )
5/8 - | -1/12 | - 3 1/4 + | -5/6 | ( 3 1/4 cũng là hỗn số )
3/-7 + | -5/12 | + 3 1/4 + | -5/6 |
1 3/5 - | 1/-4 | + 2/-3 - | - 1/2 |
\(\left|\frac{5}{-4}\right|-\left|\frac{1}{-3}\right|+-\frac{5}{6}-4\frac{1}{2}\)
\(=\left|-\frac{5}{4}\right|-\left|\frac{-1}{3}\right|+\frac{-5}{6}-\frac{9}{2}\)
\(=\frac{5}{4}-\frac{1}{3}+\frac{-5}{6}-\frac{9}{2}=-\frac{53}{12}\)
\(\frac{5}{8}-\left|-\frac{1}{12}\right|-3\frac{1}{4}+\left|-\frac{5}{6}\right|\)
\(=\frac{5}{8}-\frac{1}{12}-\frac{13}{4}+\frac{5}{6}=-\frac{15}{8}\)
\(\frac{3}{-7}+\left|-\frac{5}{12}\right|+3\frac{1}{4}+\left|-\frac{5}{6}\right|\)
\(=\frac{-3}{7}+\frac{5}{12}+\frac{13}{4}+\frac{5}{6}=\frac{57}{14}\)
\(1\frac{3}{5}-\left|\frac{1}{-4}\right|+\frac{2}{-3}-\left|-\frac{1}{2}\right|\)
\(=\frac{8}{5}-\left|\frac{-1}{4}\right|+\frac{-2}{3}-\frac{1}{2}\)
\(=\frac{8}{5}-\frac{1}{4}+\frac{-2}{3}-\frac{1}{2}\)
\(=\frac{27}{20}+\frac{-7}{6}=\frac{27}{20}-\frac{7}{6}=\frac{11}{60}\)
to khong lam to đa hoc đau
Bài 2:
a) ( 1/4 :5 x 1/3 x 1/4 ) : ( 2/3 + 1/5 :4 )
b) ( 3/4 :5 + 1/2:3/5 ) x ( 4/5 + 1/3 x2 )
a. 1/240 : 43/60 = 1/172
b. 59/60 x 22/15 = 649/450
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1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5 1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+...
Đọc tiếp
1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5 1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+3+5+5+1+1+1+1+1+2+4+4+4+4+4+5+5+4+4+4+3+0+3+5+5+1+1.0+0+0+0+0+0+0+0++5+4+4+4+3+3+5+5+7= ? CHỈ CÓ NHỮNG NGƯỜI THÔNG MINH MỚI LÀM ĐC ĐÚNG TÔI TÍCH CHO MỖI NGƯỜI 1 CÁI
Sau khi đọc lại thì mik trả lời ko đúng -_-
= 0 vì có dấu nhân ở cuối
Ticm mik nha :3
tự đi mà l.m nhìn ngứa cả mắt
Xem thêm câu trả lời
2/5+2/3+3/4
2/6+3/12
5/6+1/3
1/3+5/12+5/6
5/8+4/7
1/5+5/35
5/8+3/4
1/6+1/3+1/12
1/6+5/24+2/3
7/3+8/7
2/5+1/6
1/7+1/4+6/7+3/4
giúp với
và ai giải được gọi cụ
9/10
17/36
7/6
19/12
67/56
12/35
11/8
7/12
25/24
73/21
17/30
2
ok chưa bạn!
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