Compare 27/21 and 72/63
1st number: 1 6/21, 2nd number: 1 9/63
27/21 is greater than 72/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
27/21 = 27 × 3/21 × 3 = 81/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
72/63 = 72 × 1/63 × 1 = 72/63 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 81/63 > 72/63 or 27/21 > 72/63
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