Compare 20/81 and 3/30
20/81 is greater than 3/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
20/81 = 20 × 10/81 × 10 = 200/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
3/30 = 3 × 27/30 × 27 = 81/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 200/810 > 81/810 or 20/81 > 3/30
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