( 3/4 + 2/3 ) : 17/4 - 3/4
= 17/12 : 17//4 - 3/4
= 1/3 - 3/4
= -5/12
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Các câu hỏi tương tự
a) -7/2+3/4-17/12
b)3/4+(-9/5)-4/3
c)-1/12-( 21/3-1/3)
d) 22/7.(-7/11)+18
e)(3/4+2/3):17/4-3/4
a,-4/13x5/17+-12/13x4/17+4/13
b,2⁷x9²/3³x2⁵
c,2/5-3/4-1/2
( 3/4 + 2/3 ) ÷ 17/4 - 3/4
Thực hiện phép tính 1 cách hợp lí:
a, 11/125-17/18-5/7+4/9+17/14
b,1-1/2+2-2/3+3-3/4+4-1/4-3-1/3-2-1/2-1
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)
Tính bằng cách hợp lí
a)\(\frac{1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}}{1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}}:\frac{13+\frac{13}{2}+\frac{13}{3}+\frac{13}{4}}{17-\frac{17}{2}+\frac{17}{3}-\frac{17}{4}}\)
a) 11/125 - 17/18 - 5/7 + 4/9 + 17/14
b) 1 - 1/2 + 2 - 2/3 + 3 - 3/4 +4 - 1/4 - 3 - 1/3 - 2 - 1/2 -1
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1. Tính hợp lí
a, A=11/125-17/18-5/7+4/9+17/14
b, B=1-1/2+2-2/3+3-3/4+4-1/4-3-1/3-2-1/2-1
c, C=1/100-1/100.99-1/99.98.......-1/3.2-1/2.1
a) (4^17+4^3) : (4^16+4^2)
b) (2^7. 3^4.2^9.3^5) : ( 2^6.3^3.13)
c) 24^3:3^4 - 32^12:16^12