Compare 5/20 and 15/72
5/20 is greater than 15/72
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,
5/20 = 5 × 18/20 × 18 = 90/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/360 > 75/360 or 5/20 > 15/72
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