Compare 21/30 and 4/36
21/30 is greater than 4/36
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
21/30 = 21 × 6/30 × 6 = 126/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
4/36 = 4 × 5/36 × 5 = 20/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/180 > 20/180 or 21/30 > 4/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30 and 4/36 21/30 and 8/36 21/60 and 4/36 21/30 and 4/72 63/30 and 4/36 21/30 and 12/36 21/90 and 4/36 21/30 and 20/36 21/30 and 28/36