Compare 72/63 and 21/6
1st number: 1 9/63, 2nd number: 3 3/6
72/63 is smaller than 21/6
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 6 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
72/63 = 72 × 2/63 × 2 = 144/126 - Likewise, for the 2nd fraction, since 6 × 21 = 126,
21/6 = 21 × 21/6 × 21 = 441/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 144/126 < 441/126 or 72/63 < 21/6
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