Question

\(\dfrac{3}{15}+\dfrac{1}{5}\)

Answer 1

\(\dfrac{3}{15}+\dfrac{1}{5}=\dfrac{3}{15}+\dfrac{3}{15}=\dfrac{6}{15}=\dfrac{2}{5}\)

Answer 2

`3/15+1/5=3/15+3/15=2/5`

Answer 3

\(=\dfrac{3}{15}+\dfrac{3}{15}=\dfrac{3}{5}\)

Answer 4

Cách 1:

\(\dfrac{3}{15}+\dfrac{1}{5}=\dfrac{3}{15}+\dfrac{3}{15}=\dfrac{6}{15}=\dfrac{2}{5}\)

Cách 2:

\(\dfrac{3}{15}+\dfrac{1}{5}=\dfrac{1}{5}+\dfrac{1}{5}=\dfrac{2}{5}\)