*Mong các bạn giúp mình ạ^^*
(\(\dfrac{1}{2}\)-0,75).(0,2-\(\dfrac{2}{5}\)) / \(\dfrac{5}{9}\) - (\(1\dfrac{1}{2}\))
TÌM Y BIẾT:
a) y x 4/3= 16/9
b) (y-1/2)+0,5=3/4
c) 4/5-2/5 x y=0,2
d) (y+3/4)x5/7=10/9
e) y : 5/4=9/5+1/2
f) y x 1/2+3/2x y=4/5
Thực hiện các phép tính:
\(a,\left(\dfrac{7}{16}+\dfrac{-1}{8}+\dfrac{9}{32}\right):\dfrac{5}{4}\) \(b,10\dfrac{2}{9}+2\dfrac{3}{5}+6\dfrac{2}{9}\)
\(c,30\%-2\dfrac{2}{5}+0,2.\dfrac{1}{2}\) \(d,\dfrac{-25}{30}.\dfrac{37}{44}+\dfrac{-25}{30}.\dfrac{13}{44}+\dfrac{-25}{30}.\dfrac{-6}{44}\)
\(a\dfrac{-2}{3}.\dfrac{4}{5}+\dfrac{1}{5}:\dfrac{9}{11}b\left(-6,2:3,7\right):0,2\)
MONG MỌI NGƯỜI, ANH CHỊ, THẦY CÔ GIÚP ĐỠ
Thực hiện phép tính a) (1/2 - 0,75 ) . ( 0,2 - 2/5) / 5/9 - 1và1/12) b) 2/3 + 2/7-1/14 / - 1 - 3/7 + 3/28
Tính \(\frac{\left(\frac{1}{2}-0,75\right)\left(0,2-\frac{2}{5}\right)}{\frac{5}{9}-1\frac{1}{12}}\)
A)(9/25-2x18):(3 4/5+0,2)
B)3/8x19 1/3-3/8x33 1/3
câu 3 4/5 là Ba 4Phần 5 nha
A= ( -6,17 + \(3\dfrac{5}{9}\) - \(2\dfrac{36}{97}\)) . (\(\dfrac{1}{3}\) - 0,25 - \(\dfrac{1}{12}\))
B= \(\dfrac{0,5-\dfrac{3}{17}}{\dfrac{5}{6}-\dfrac{5}{17}}\) + \(\dfrac{0,5-\dfrac{1}{3}-0,2}{\dfrac{7}{5}+\dfrac{7}{3}-3,5}\)
Thực hiện phép tính:
a.0,3-4/9:4/3.6/5+1
b.1+2:(2/3-1/6).(-2,25)
c.[(1/4-0,5).2+8/3]:2
d.[(3/8-5/12).6+1/3].4
e.(4/5-1):3/5-2/3.0,5
f.0,8:{0,2-7.[1/6+(5/21-5/14)]}