Compare 63/45 and 81/42
1st number: 1 18/45, 2nd number: 1 39/42
63/45 is smaller than 81/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
63/45 = 63 × 14/45 × 14 = 882/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
81/42 = 81 × 15/42 × 15 = 1215/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 882/630 < 1215/630 or 63/45 < 81/42
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