Compare 4/7 and 84/81
1st number: 4/7, 2nd number: 1 3/81
4/7 is smaller than 84/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
4/7 = 4 × 81/7 × 81 = 324/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
84/81 = 84 × 7/81 × 7 = 588/567 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 324/567 < 588/567 or 4/7 < 84/81
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