Compare 80/42 and 21/32
1st number: 1 38/42, 2nd number: 21/32
80/42 is greater than 21/32
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
80/42 = 80 × 16/42 × 16 = 1280/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
21/32 = 21 × 21/32 × 21 = 441/672 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1280/672 > 441/672 or 80/42 > 21/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42 and 42/32 80/84 and 21/32 80/42 and 21/64 80/42 and 63/32 80/42 and 21/96