Compare 20/81 and 84/36
1st number: 20/81, 2nd number: 2 12/36
20/81 is smaller than 84/36
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 36 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
20/81 = 20 × 4/81 × 4 = 80/324 - Likewise, for the 2nd fraction, since 36 × 9 = 324,
84/36 = 84 × 9/36 × 9 = 756/324 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/324 < 756/324 or 20/81 < 84/36
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