Question

Convert given fractions into fractions with equal numerators:
15/19, 25/28, 9/11 and 45/47

Answer 1

$15/19,25/28,9/11$ and $45/47$
Here the LCM of $15,25,9$ and $45$ is $225$
$15/19=(15\times 15)/(19\times 15)=225/285$
$25/28=(25\times 9)/(11\times 25)=225/252$
$9/11=(9\times 25)/(11\times 25)=225/275$
$145/47=(45\times 5)/(47\times 5)=225/235$
Therefore, $225/285,225/252,225/275$ and $225/235$ are the required fractions.