\(\dfrac{2}{5}\) x \(\dfrac{1}{4}:\dfrac{3}{2}=\dfrac{2}{20}:\dfrac{3}{2}=\dfrac{1}{10}:\dfrac{3}{2}=\dfrac{1}{10}\) x \(\dfrac{2}{3}=\dfrac{2}{30}\)
a.1/5x1/2:3/10
b.1/2x1/3:1/4
Tính giá trị biểu thức
4/5-2/5x1/4 1/4+3/4;1/8
11/10-2/5:1/3
tính:
a).2/3+5/9-3/4
b).2/5x1/4:3/8
đầy đủ tick,lẹ
tính:
a).2/3+5/2-3/4
b).2/5x1/2:1/3
2/9:2/9x1/2
đầy đủ tick
2/5x1/7<x<16/4x2/3
tính
a. 2/9:2/3:1/2
b. 2/5x1/2:1/3
X/5x1/3=2/15 nhanh giùm nha!
Bài 1:Tính
a.1/5x1/2:1/3 b.2/9:2/3x1/2
c.1/2x1/3+1/4 c.2/7:2/3-1/7
Giúp mình nhé :)
bai 1: tinh gia tri cua bieu thuc:
a, 8/9- 1/3:1/2=
b,(3/10+4/5x1/2):(17/9-4/3)=
bai 2 mot manh dat hinh chu nhat co dien tich 25/4 met vuong, chieu rong 5/4m.tinh chu vi manh dat do.
