Compare 12/64 and 18/72
12/64 is smaller than 18/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 72 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 64 × 9 = 576,
12/64 = 12 × 9/64 × 9 = 108/576 - Likewise, for the 2nd fraction, since 72 × 8 = 576,
18/72 = 18 × 8/72 × 8 = 144/576 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 108/576 < 144/576 or 12/64 < 18/72
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