Compare 81/21 and 1/49
1st number: 3 18/21, 2nd number: 1/49
81/21 is greater than 1/49
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
81/21 = 81 × 7/21 × 7 = 567/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
1/49 = 1 × 3/49 × 3 = 3/147 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/147 > 3/147 or 81/21 > 1/49
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