which is bigger and why? 7/15 or 22/45

Question

which is bigger and why?

7/15 or 22/45

Answer 1

Hello Alyssa.

If we have 2 fractions with different denominators, we can find a common denominator and then check their numerator; bigger the numerator means bigger the number.

15 and 45 are a denominator and we know that 15*3 = 45;

if we expand first fraction by 3; 7*3/15*3 = 21/45

we have 21/45 and 22/45;

22/45 is bigger one

hope that helps