Question

 gíup t vs ạ , cần gấp ặ . Thanks . Ai nhanh +đúng thì t tick nhaa

 

Answer 1

Bài 3.4

a; \(\dfrac{36}{84}\) = \(\dfrac{42}{98}\) 

\(\dfrac{36}{84}\) = \(\dfrac{36:12}{84:12}\) = \(\dfrac{3}{7}\)

\(\dfrac{42}{98}\) = \(\dfrac{42:14}{98:14}\) = \(\dfrac{3}{7}\)

Vậy \(\dfrac{36}{84}\) = \(\dfrac{42}{98}\) (đpcm)

b; \(\dfrac{123}{237}\) = \(\dfrac{123123}{237237}\)  

  \(\dfrac{123123}{237237}\) = \(\dfrac{123123:1001}{237237:1001}\) = \(\dfrac{123}{237}\) (đpcm)