Compare 15/84 and 9/10
15/84 is smaller than 9/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
9/10 = 9 × 42/10 × 42 = 378/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/420 < 378/420 or 15/84 < 9/10
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