Question

Làm bài 2 giúp mình với mình đang gấp

Answer 1

\(\dfrac{3}{4}+\dfrac{2}{3}=\dfrac{9+8}{12}=\dfrac{17}{12}\)

\(\dfrac{13}{5}-\dfrac{2}{1}=\dfrac{13-10}{5}=\dfrac{3}{5}\)

\(\dfrac{4\text{×}3}{7\text{×}4}=\dfrac{12}{28}\)

\(\dfrac{6\text{×}3}{1\text{×}2}=\dfrac{18}{2}\)

Answer 2

bài2)

3/4 + 2/3 = 17/12

13/5 - 10/5 = 3/5

4/7 x 3/4 = 3/7

6 : 2/3 = 6 x 3/2 = 9