Compare 63/80 and 21/3
1st number: 63/80, 2nd number: 7 0/3
63/80 is smaller than 21/3
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 3 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
63/80 = 63 × 3/80 × 3 = 189/240 - Likewise, for the 2nd fraction, since 3 × 80 = 240,
21/3 = 21 × 80/3 × 80 = 1680/240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 189/240 < 1680/240 or 63/80 < 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/80 and 42/3 63/80 and 21/6 63/80 and 63/3 63/80 and 21/9 63/80 and 21/15