Question

3 phần 49 ; -12 phần 25 quy đồng ạ

Answer 1

75/1225

-558/1225

Answer 2

\(\dfrac{3}{49};\dfrac{-12}{25}\)

\(\dfrac{3}{49}=\dfrac{3\cdot25}{49\cdot25}=\dfrac{75}{1225}\)

\(\dfrac{-12}{25}=\dfrac{\left(-12\cdot49\right)}{25\cdot49}=\dfrac{-558}{1225}\)

Answer 3

\(-\dfrac{12}{25}=\dfrac{-12.49}{25.49}=-\dfrac{558}{1225}\)

\(\dfrac{3}{49}=\dfrac{3.25}{49.25}=\dfrac{75}{1225}\)