Compare 12/20 and 12/72
12/20 is greater than 12/72
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,
12/20 = 12 × 18/20 × 18 = 216/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 216/360 > 60/360 or 12/20 > 12/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20 and 12/72 12/20 and 24/72 12/40 and 12/72 36/20 and 12/72 12/20 and 36/72 12/60 and 12/72 60/20 and 12/72 12/20 and 60/72 84/20 and 12/72 12/20 and 84/72