Compare 15/8 and 63/42
1st number: 1 7/8, 2nd number: 1 21/42
15/8 is greater than 63/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
15/8 = 15 × 21/8 × 21 = 315/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
63/42 = 63 × 4/42 × 4 = 252/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 315/168 > 252/168 or 15/8 > 63/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8 and 63/42 15/16 and 63/42 15/8 and 63/84 45/8 and 63/42 15/24 and 63/42 75/8 and 63/42 15/40 and 63/42 15/56 and 63/42