Compare 9/10 and 21/25
9/10 is greater than 21/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 25 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 10 × 5 = 50,
9/10 = 9 × 5/10 × 5 = 45/50 - Likewise, for the 2nd fraction, since 25 × 2 = 50,
21/25 = 21 × 2/25 × 2 = 42/50 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 45/50 > 42/50 or 9/10 > 21/25
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