Question

a.tìm x

2/3*1/5*x=1/3

b.tính nhanh

3/4:3+1/4:3-1/5

Ai giúp mình trước mình tick trước

Answer 1

a) \(\frac{2}{3}\cdot\frac{1}{5}\cdot x=\frac{1}{3}\)

           \(\frac{2}{15}\cdot x=\frac{1}{3}\)

                     \(x=\frac{1}{3}:\frac{2}{15}\)

                     \(x=\frac{5}{2}\)

b) \(\frac{3}{4}:3+\frac{1}{4}:3-\frac{1}{5}\)

=\(\left(\frac{3}{4}+\frac{1}{4}\right):3-\frac{1}{5}\)

=\(\frac{1}{3}-\frac{1}{5}\)

=\(\frac{2}{15}\)

Tk mk nha!!!

Answer 2

Thanks Linh nha!