Compare 9/18 and 21/32
9/18 is smaller than 21/32
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 18 × 16 = 288,
9/18 = 9 × 16/18 × 16 = 144/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
21/32 = 21 × 9/32 × 9 = 189/288 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 144/288 < 189/288 or 9/18 < 21/32
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