Compare 12/28 and 72/63
1st number: 12/28, 2nd number: 1 9/63
12/28 is smaller than 72/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
12/28 = 12 × 9/28 × 9 = 108/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 108/252 < 288/252 or 12/28 < 72/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28 and 72/63 12/56 and 72/63 36/28 and 72/63 12/84 and 72/63 60/28 and 72/63 84/28 and 72/63