1, A= \(\dfrac{-3}{4}.\left(0,125-1\dfrac{1}{2}\right):\dfrac{33}{16}-25\%\)
2, B= \(1\dfrac{13}{15}.0,75-\left(\dfrac{11}{20}+25\%\right):\dfrac{7}{3}\)
3, C= \(\dfrac{5}{16}:0,125-\left(2\dfrac{1}{4}-0,6\right).\dfrac{10}{11}\)
4, D= \(6\dfrac{5}{12}:2\dfrac{5}{4}+11\dfrac{1}{4}.\left(\dfrac{1}{3}-\dfrac{1}{5}\right)\)
a.(7/8-3/4).1/3-2/7.(3,5)
b.(3/5+0,415-3/200).2 2/3.0,25
c.5/16:0,125-(2 1/4-0,6).10/11
d.0,25:(10,3-9,8)-3/4
e.1 13/15.0,75-(11/20+25%):7/3
Bài 1 TÍNH
\(\frac{5}{16}:0,125-\left(2\frac{1}{4}-0,6\right).\frac{10}{11}\)
\(49\frac{8}{23}-\left(5\frac{7}{32}+14\frac{8}{23}\right)\)
Bài 1: Thực hiện phép tính
a) \(\frac{5}{16}\): 0,125 - \(\left(2\frac{1}{4}-0,6\right)\)x \(\frac{10}{11}\)
b) 0,25 : (10,3 - 9,8) - \(\frac{3}{4}\)
c) \(1\frac{13}{15}\)x 0,75 - \(\left(\frac{11}{20}+25\%\right)\):\(\frac{7}{3}\)
a,x - 1/2 - (-1/6)
b,x + 5/6 = 3/8
c,2/3 . x -1/2 = 5/6
d, x/7 = 6/-21
e,(7/3 x -0,6) : 3^2/5 = 1
f,x/45 = 5/6 + -29/30
g,(4,5 - 2x) . (-1^4/7) =11/14
h,-2/7 + 4/7x=5/7
tìm x
0,125+7/5.(x-1/8)
(23/5/24 - 22/2/15):(11/5/3 - 10/11/20)
Tìm x biết:a) 10/x = -15/9; b) x/9 = -11/5 : 0,6; c) -7/8 - 2x = -3/4; d) (x-1/2):1/3+5/7=9và5/7; e)1/15.x+4/5.x=5và1/5; f) -1/3<x/6<1/2(x thuộc Z); h) 3/5+2/5:x=-1/4;i) 4 và 3/4x - 3 và 1/2=5/4; k)9/4.(1/3x-1/2)=4và1/2
bt.1 tính
a )-1/12 - (2 trên 5/8 - 1/3)
b 18/ 39 . (- 1 trên 5/8 ) : (-6 trên 3/4 )
c ) 0,75 -0,6 + 3/7 + 3/15 phần 2 ,75 - 2,2 + 11/7 +11/17
Tính 1) 4/5 +13/18 2) 3/7 -11/8 3) -7/10 - -4/5 4) 3/20 -1/25 5) 2/3 - 5/6 6) 1/4 + -3/8 - 19/10 7) -9/10 - -7/18 8) 3/10 - 11/18 9) 3/5 -5/6 + -7/12 10) -4/9 - (-5 )/6 - 3/8