Compare 21/18 and 36/10
1st number: 1 3/18, 2nd number: 3 6/10
21/18 is smaller than 36/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
21/18 = 21 × 5/18 × 5 = 105/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
36/10 = 36 × 9/10 × 9 = 324/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/90 < 324/90 or 21/18 < 36/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/18 and 36/10 21/18 and 72/10 21/36 and 36/10 21/18 and 36/20 63/18 and 36/10 21/54 and 36/10 21/18 and 36/30 21/90 and 36/10 21/18 and 36/50 21/18 and 36/70