Compare 8/42 and 75/21
1st number: 8/42, 2nd number: 3 12/21
8/42 is smaller than 75/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
8/42 = 8 × 1/42 × 1 = 8/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
75/21 = 75 × 2/21 × 2 = 150/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 8/42 < 150/42 or 8/42 < 75/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42 and 75/21 8/84 and 75/21 8/42 and 75/42 24/42 and 75/21 8/42 and 75/63 40/42 and 75/21 56/42 and 75/21