Compare 9/32 and 21/90
9/32 is greater than 21/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 90 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 32 × 45 = 1440,
9/32 = 9 × 45/32 × 45 = 405/1440 - Likewise, for the 2nd fraction, since 90 × 16 = 1440,
21/90 = 21 × 16/90 × 16 = 336/1440 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/1440 > 336/1440 or 9/32 > 21/90
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