Question

Quy đồng giúp mik nhé

Answer 1

\(\dfrac{87}{40}=\dfrac{87x5}{40x5}=\dfrac{435}{200};\dfrac{153}{200}\)

\(\dfrac{9}{8}=\dfrac{9x3}{8x3}=\dfrac{27}{24};\dfrac{5}{3}=\dfrac{5x8}{3x8}=\dfrac{40}{24};\dfrac{1}{2}=\dfrac{1x12}{2x12}=\dfrac{12}{24}\)

Answer 2

Lấy 200 làm mẫu chung

87×5/40×5

=435/200