tinh nhanh gia tri cac bieu thuc sau
a , 1/ 2+ 1 /3 + 1 / 4 + 1/ 6
b, 53 / 4 . 11/ 16 - 23/4 . 11/16
c, 3/ 8 . ( 2 /9 + 4 /15 )
Những câu hỏi liên quan
Tinh gia tri cac bieu thuc sau
(75 * 224 *10 ) : 25
(328 * 17 ) * (1859 -326 ) * ( 49 *24 - 98 *12)
3/11 + 7/22 *2 - 5/ 11
5/8 - 1/3 : 3 + 3 va 4/9
tinh gia tri bieu thuc:
-1-2+3+4-5-6+7+8-9-10+11+12-...-2013-2014+2015+2016
Tinh gia tri cua bieu thuc:
a, 4+11/8-5/6=
b, (1/2+4/7)-(3/7-3/10)=
\(4+\frac{11}{8}-\frac{5}{6}=\frac{96+33-20}{24}=\frac{109}{24}\)
\(\left(\frac{1}{2}+\frac{4}{7}\right)-\left(\frac{3}{7}-\frac{3}{10}\right)=\frac{1}{2}+\frac{4}{7}-\frac{3}{7}+\frac{3}{10}\)
\(\left(\frac{1}{2}+\frac{3}{10}\right)+\left(\frac{4}{7}-\frac{3}{7}\right)=\frac{4}{5}+\frac{1}{7}=\frac{28+5}{35}=\frac{33}{35}\)
Đúng 0
Bình luận (0)
ban Chitanda Eru oi to bao nhung ma nhan voi bao nhieu ma ra duoc 96
Đúng 0
Bình luận (0)
1> Tính
a) 3/11 + 5/-9 + 4/11 - 4/9 + 3/17 + 15/11
b) M = -3 * 4 - 6 * 8 - 9 * 12 - 12 * 16 - 16 * 20 / -1 * 2 - 2 * 4 - 3 * 6 - 4 * 8 - 6 * 10
c) N = 5/7 - 5/9 - 5/11 / 15/7 + 15/9 + 15/11
d) 4 + 4/73 * 1/23 / 5 + 5/73 * 1/23
nhanh lên nha mk đang cần gấp
thanks nha
a; \(\dfrac{3}{11}\) + \(\dfrac{5}{-9}\) + \(\dfrac{4}{11}\) - \(\dfrac{4}{9}\) + \(\dfrac{3}{17}\) + \(\dfrac{15}{11}\)
= (\(\dfrac{3}{11}\) + \(\dfrac{4}{11}\) + \(\dfrac{15}{11}\)) - (\(\dfrac{5}{9}\) + \(\dfrac{4}{9}\)) + \(\dfrac{3}{17}\)
= 2 - 1 + \(\dfrac{3}{17}\)
= 1 + \(\dfrac{3}{17}\)
= \(\dfrac{20}{17}\)
Đúng 0
Bình luận (0)
c; N = \(\dfrac{\dfrac{5}{7}-\dfrac{5}{9}-\dfrac{5}{11}}{\dfrac{15}{7}+\dfrac{15}{9}+\dfrac{15}{11}}\)
Phải là - \(\dfrac{5}{7}\) chỗ tử số mới đúng em nhé!
Đúng 0
Bình luận (0)
d; \(\dfrac{4+\dfrac{4}{73}\times\dfrac{1}{23}}{5+\dfrac{5}{73}\times\dfrac{1}{23}}\)
= \(\dfrac{4\times\left(1+\dfrac{1}{73\times23}\right)}{5\times\left(1+\dfrac{1}{73\times23}\right)}\)
= \(\dfrac{4}{5}\)
Đúng 0
Bình luận (0)
tinh gia tri bieu thuc:
A) 1000000 - 107492 : 154 x 28 + 1000
B) 8/15 + 4/7 + 14/30 + 12/21 + 5
C) 9/13 : 6/11 - 5/12 : 6/11
Tim x :
1) X x2 + X x 1/5 = 8/5
2) X : 3/8 = 4/3 : 3/6
A) 1000000 - 107492 : 154 x 28 + 1000
= 1000000 - 19544 + 1000
= 981456
B) 8/15 + 4/7 + 14/30 + 12/21 + 5
= 15/7 + 5
= 50/7
C) 9/13 : 6/11 - 5/12 : 6/11
= 9/13 x 11/6 - 5/12 x 11/6
= (9/13 - 5/12) x 11/6
= 43/156 x 11/6
= 473/936
Bài 2
1) X x2 + X x 1/5 = 8/5
X x (2 + 1/5 ) = 8/5
X x 11/5 = 8/5
X = 8/5 x 5/11
X = 8/11
2) X : 3/8 = 4/3 : 3/6
X : 3/8 = 8/3
X = 8/3 x 3/8
X = 1
Đúng 0
Bình luận (0)
a) 1 000 000 - 107 492 : 154 x 28 + 1000
= 1 000 000 - 698 x 28 + 1000
= 1 000 000 - 19544 + 1000
= 980 456 + 1000
= 981 456
b) 8/15 + 4/7 + 14/30 + 12/21 + 5
= ( 8/15 + 14/30 ) + ( 4/7 + 12/21 ) + 5
= ( 16/30 + 14/30 ) + ( 12/21 + 12/21 ) + 5
= 30/30 + 24/21 + 5
= 1 + 24/21 + 5
= ( 1 + 5 ) + 24/21
= 6 + 24/21
= 150/21
= 50/7
Đúng 0
Bình luận (0)
Tinh gia tri cua bieu thuc :
3/4 nhan 8/9 nhan 15/16 nhan ...nhan 99/100 =
ko được phép đăng ak
Xem thêm câu trả lời
tinh gia tri cua bieu thuc \
A= (100+98+96+....................+2)-97-95-......-1
B=1+2-3-4+5+6-7-8+9+10-11-12+............-299-300+301+302
Thuc hien phep tinh:
a) 32.(-1/2)3+1/4
b) 16.(1/2)2.1/2
c) 17/22+4/25+29/25+0,5+5/22
d) 3/11-7/15+8/11-8/15+0.25
Cac ban ghi cac buoc lam gjum mik nha
Tinh hop ly cac gia tri bieu thuc sau
a) \(4\frac{8}{23}+5\frac{7}{8}-9\frac{8}{23}\)
b)\(6\frac{3}{8}+5\frac{1}{2}\)