Compare 72/30 and 80/20
1st number: 2 12/30, 2nd number: 4 0/20
72/30 is smaller than 80/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
72/30 = 72 × 2/30 × 2 = 144/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
80/20 = 80 × 3/20 × 3 = 240/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 144/60 < 240/60 or 72/30 < 80/20
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