Compare 15/84 and 2/20
15/84 is greater than 2/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 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 20 × 21 = 420,
2/20 = 2 × 21/20 × 21 = 42/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/420 > 42/420 or 15/84 > 2/20
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