\(\dfrac{5}{3}-1\\ =\dfrac{5}{3}-\dfrac{3}{3}\\ =\dfrac{5-3}{3}\\ =\dfrac{2}{3}\)
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Các câu hỏi tương tự
a)(5+1/5-2/9)-(2-1/23-3/35+5/6)-(8+2/7-1/18)
b) 1/3-3/4(-3/5+1/64- -2/9-1/36+1/15
c) -5/7-(-5/67)+13/10+1/2+(-1/6)+1 3/14-(-2/5)
d)3/5:(-1/15-1/6)+3/5:(-1/3-1 1/15)
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
1) Tìm x,biết :
a) 3/2 . |x-5/3| - 4/5 = 4/3 . |x-5/3| + 1
b) 2.|3x +1| = 1/3 . |3x + 1| +5
c) 1/4 - 5/2 . | 3x - 1/5| = 2/3. |3x - 1/5| - 2/3
| 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 |
B=(-5/3+2/5):4/5+(-1/3+8/5):4/5 C=1/2-2/3-(-1/3)+1/69-(2/9)+1/6-(1/36)
[-1/2-[-3/5]+[-1/9+1/71-[-2/7]+4/35-7/18
1/3-3/4-[-3/5]+1/64-2/9-1/36+1/15
-5/7-[-5/67]+13/30+1/2+[-11/6]+17/14-[-2/5]
[3-1/4+2/3]-[5-1/3-6/5]-[6-7/4+3/2]
[5+1/5-2/9]-[2-1/23-73/35+5/6]-[8+2/7-1/18]
làm giúp mình mình đang cần gấp
Tính:
a) -5/7(14/5 - 7/10) : |-2/3| - 3/4(8/9 + 16/3) + 10/3(1/3 + 1/5)
b) 17/-26(1/6 - 5/3) : 17/13 - 20/3(2/5 - 1/4) + 2/3(6/5 - 9/2)
c) -8/9(9/8 - 3/2) + 5/4 : (5/2 - 15/4) - 3/4(10/9 - 8/3) : (-1/3)
d) 21/10 : (12/5 - 9/10) . (-4/7) - 3/2(1/6 - 7/12) + 1/5(3/2 - 1/4)
bai 1
1) (-3)^10 . 15^5 / 25^3 . (-9)^7
2) (-5)^60 . 30^5 / 15^5 . 5 ^61
3) 3/5+ 3/5^3 + 3/5^5 + ... + 3/5^ 199
4) 3^6 . 45^4 - 15^13 . 5^-9 / 27^4 . 25^3 + 45^6
bai 2 ; so sanh
1) (-5)^30 ; (-3) ^50
2) ( -1/16)^10 ; (1/2)^50
3) 2^2010+1 / 2^2007 + 1 ; 2^2012+1 / 2^2009+1
1+(1+3)+(1+3+5)+(1+3+5+7+(1+3+5+...+2015)
3 - 2x - (5/4 - 7/5) = 9/20
x : (-2/3) mũ 3 = -2/3
(2/5) mũ 5 nhân x = (2/5) mũ 7
343/125 = (7/5) mũ x
(-1/3) nhân x = -1/243
Tính:
(-2 1/2) mũ 3
(1 + 1/2 - 1/4) mũ 2 nhân 2022
2 : (1/2 - 2/3) mũ 3
7 nhân 2 mũ 3 - 5 nhân {[10,51 + 4 nhân (3/4 - 2/5) mũ 2] - 2022}