1. Find LCM of fractions 12/25,18/45

Solution:
`"HCF of given fractions "=("HCF of Numerators")/("LCM of Denominators")`

`"HCF"=("HCF of 12,18")/("LCM of 25,45")`

`"HCF"=6/225`


`"LCM of given fractions" = ("LCM of Numerators")/("HCF of Denominators")`

`"LCM"=("LCM of 12,18")/("HCF of 25,45")`

`"LCM"=36/5`

---

2. Find LCM of fractions 8/9,32/81,10/27

Solution:
`"HCF of given fractions "=("HCF of Numerators")/("LCM of Denominators")`

`"HCF"=("HCF of 8,32,10")/("LCM of 9,81,27")`

`"HCF"=2/81`


`"LCM of given fractions" = ("LCM of Numerators")/("HCF of Denominators")`

`"LCM"=("LCM of 8,32,10")/("HCF of 9,81,27")`

`"LCM"=160/9`

---

3. Find LCM of fractions 4/5,3/10,7/15

Solution:
`"HCF of given fractions "=("HCF of Numerators")/("LCM of Denominators")`

`"HCF"=("HCF of 4,3,7")/("LCM of 5,10,15")`

`"HCF"=1/30`


`"LCM of given fractions" = ("LCM of Numerators")/("HCF of Denominators")`

`"LCM"=("LCM of 4,3,7")/("HCF of 5,10,15")`

`"LCM"=84/5`

---