Compare 7/21 and 45/8
1st number: 7/21, 2nd number: 5 5/8
7/21 is smaller than 45/8
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
7/21 = 7 × 8/21 × 8 = 56/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
45/8 = 45 × 21/8 × 21 = 945/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 56/168 < 945/168 or 7/21 < 45/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/21 and 45/8 7/21 and 90/8 7/42 and 45/8 7/21 and 45/16 7/63 and 45/8 7/21 and 45/24 35/21 and 45/8 7/21 and 45/40 49/21 and 45/8 7/21 and 45/56