Question

quy đồng mẫu số 3 phân số: 1/4;1/3;1/5 

Answer 1

MSC: `60`

`1/4 = (1xx15)/(4xx15) = 15/60`

`1/3 = (1xx20)/(3xx20) = 20/60`

`1/5 = (1xx12)/(5xx12) = 12/60`

 

Answer 2

Mẫu số chung là: 60

\(\dfrac{1}{4}=\dfrac{1.15}{4.15}=\dfrac{15}{60}\)

\(\dfrac{1}{3}=\dfrac{1.20}{3.20}=\dfrac{20}{60}\)

\(\dfrac{1}{5}=\dfrac{1.12}{5.12}=\dfrac{12}{60}\)

Answer 3

MSC : `60 `

 `1/4 = (1xx15)/(4xx15) = 15/60 `

 

` 1/3 = (1xx20)/(3xx20)= 20/60 `

 

` 1/5 = (1xx12)/(5xx12)= 12/60`