Question

quy đồng mẫu số 

36/64 và -12/81

Answer 1

\(\dfrac{36}{64}=\dfrac{9}{16}\) ; \(-\dfrac{12}{81}=-\dfrac{4}{27}\)

Quy đồng:

\(\dfrac{9}{16}=\dfrac{243}{432}\) ; \(-\dfrac{4}{27}=-\dfrac{64}{432}\)

Answer 2

`36/64 = 9/16 = (9 . 27)/(16 . 27) = 243/432`

`-12/81 = -4/27 = (-4 . 16)/(16 . 27) = -64/432`