Compare 42/24 and 8/21
1st number: 1 18/24, 2nd number: 8/21
42/24 is greater than 8/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
8/21 = 8 × 8/21 × 8 = 64/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 294/168 > 64/168 or 42/24 > 8/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24 and 8/21 42/24 and 16/21 42/48 and 8/21 42/24 and 8/42 42/24 and 24/21 42/72 and 8/21 42/24 and 8/63 42/24 and 40/21 42/24 and 56/21