Compare 18/64 and 21/20
1st number: 18/64, 2nd number: 1 1/20
18/64 is smaller than 21/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 20 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
18/64 = 18 × 5/64 × 5 = 90/320 - Likewise, for the 2nd fraction, since 20 × 16 = 320,
21/20 = 21 × 16/20 × 16 = 336/320 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/320 < 336/320 or 18/64 < 21/20
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