Compare 72/80 and 3/20
72/80 is greater than 3/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
72/80 = 72 × 1/80 × 1 = 72/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
3/20 = 3 × 4/20 × 4 = 12/80 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 72/80 > 12/80 or 72/80 > 3/20
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