Compare 21/24 and 45/70
21/24 is greater than 45/70
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
21/24 = 21 × 35/24 × 35 = 735/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
45/70 = 45 × 12/70 × 12 = 540/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 735/840 > 540/840 or 21/24 > 45/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24 and 45/70 21/24 and 90/70 21/48 and 45/70 63/24 and 45/70 21/72 and 45/70