Question

Quy đồng mẫu số:3/20 và 4/15

Answer 1

Mẫu số chung :\(60\)

\(\dfrac{3}{20}=\dfrac{3.3}{20.3}=\dfrac{9}{60}\\ \dfrac{4}{15}=\dfrac{4.4}{15.4}=\dfrac{16}{60}\)

Answer 2

\(\dfrac{3.3}{20.3}=\dfrac{9}{60}\)

\(\dfrac{4.4}{15.4}=\dfrac{16}{60}\)

 

Answer 3

\(\dfrac{3}{20}=\dfrac{3\times3}{20\times3}=\dfrac{9}{60}\)

\(\dfrac{4}{15}=\dfrac{4\times4}{15\times4}=\dfrac{16}{60}\)

Answer 4

Ta có mẫu số chúng là 60.

\(\dfrac{3}{20}=\dfrac{3\times3}{20\times3}=\dfrac{9}{60};\dfrac{4}{15}=\dfrac{4\times4}{15\times4}=\dfrac{16}{60}.\)

Answer 5

`3/20 = (3 xx 3)/(20 xx 3) = 9/60`

`4/15 = (4 xx 4)/(15 xx 4) = 16/60`

`#` Gdoggs_Neliz

Answer 6

\(\dfrac{3}{20}=\dfrac{6}{40}\)

\(\dfrac{4}{15}=\dfrac{16}{60}\)

Answer 7

MSC: 60

\(\dfrac{3}{20}\)=\(\dfrac{9}{60}\)

\(\dfrac{4}{15}\)=\(\dfrac{16}{60}\)

Answer 8

3/20=3 x 3 /20 x 3=9/60

4/15=4 x 4/15 x 4=16/60