Compare 20/63 and 30/84
20/63 is smaller than 30/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
30/84 = 30 × 3/84 × 3 = 90/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/252 < 90/252 or 20/63 < 30/84
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