Compare 45/15 and 48/20
1st number: 3 0/15, 2nd number: 2 8/20
45/15 is greater than 48/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
45/15 = 45 × 4/15 × 4 = 180/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
48/20 = 48 × 3/20 × 3 = 144/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/60 > 144/60 or 45/15 > 48/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15 and 48/20 45/15 and 96/20 45/30 and 48/20 45/15 and 48/40 45/15 and 48/60 45/75 and 48/20