Compare 21/18 and 15/64
1st number: 1 3/18, 2nd number: 15/64
21/18 is greater than 15/64
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 64 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 18 × 32 = 576,
21/18 = 21 × 32/18 × 32 = 672/576 - Likewise, for the 2nd fraction, since 64 × 9 = 576,
15/64 = 15 × 9/64 × 9 = 135/576 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 672/576 > 135/576 or 21/18 > 15/64
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