Compare 18/21 and 27/32
18/21 is greater than 27/32
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
18/21 = 18 × 32/21 × 32 = 576/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
27/32 = 27 × 21/32 × 21 = 567/672 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 576/672 > 567/672 or 18/21 > 27/32
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