Compare 4/72 and 4/20
4/72 is smaller than 4/20
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,
4/72 = 4 × 5/72 × 5 = 20/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
4/20 = 4 × 18/20 × 18 = 72/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 20/360 < 72/360 or 4/72 < 4/20
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