Compare 7/15 and 36/21
1st number: 7/15, 2nd number: 1 15/21
7/15 is smaller than 36/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
7/15 = 7 × 7/15 × 7 = 49/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
36/21 = 36 × 5/21 × 5 = 180/105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 49/105 < 180/105 or 7/15 < 36/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15 and 36/21 7/15 and 72/21 7/30 and 36/21 7/15 and 36/42 21/15 and 36/21 7/45 and 36/21 7/15 and 36/63 35/15 and 36/21 7/75 and 36/21 49/15 and 36/21