Compare 15/72 and 30/20
1st number: 15/72, 2nd number: 1 10/20
15/72 is smaller than 30/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
30/20 = 30 × 18/20 × 18 = 540/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/360 < 540/360 or 15/72 < 30/20
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