Compare 45/49 and 7/81
45/49 is greater than 7/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 81 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 49 × 81 = 3969,
45/49 = 45 × 81/49 × 81 = 3645/3969 - Likewise, for the 2nd fraction, since 81 × 49 = 3969,
7/81 = 7 × 49/81 × 49 = 343/3969 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 3645/3969 > 343/3969 or 45/49 > 7/81
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