Compare 7/20 and 20/72
7/20 is greater than 20/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
7/20 = 7 × 18/20 × 18 = 126/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/360 > 100/360 or 7/20 > 20/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20 and 20/72 7/20 and 40/72 7/40 and 20/72 21/20 and 20/72 7/20 and 60/72 7/60 and 20/72 35/20 and 20/72 49/20 and 20/72