Quy đồng mẫu số: 3/8;5/12;11/15

`MSC=120`
`3/8=[3*15]/[8*15]=45/120`
`5/12=[5*10]/[12*10]=50/120`
`11/15=[11*8]/[15*8]=88/120`

`\text{MC=BCNN(8,12,15)=120}`

`3/8` `=` `3.15/8.15` `=` `45/120`

`5/12` `=` `5.10/12.10` `=` `50/120`

`11/15` `=` `11.8/15.8` `=` `88/120`

`#Quân`

 

`\text{MC=BCNN(8,12,15)=120}`

`3/8` `=` `3.15/8.15` `=` `45/120`

`5/12` `=` `5.10/12.10` `=` `50/120`

`11/15` `=` `11.8/15.8` `=` `88/120`