Compare 9/81 and 4/30
9/81 is smaller than 4/30
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,
9/81 = 9 × 10/81 × 10 = 90/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
4/30 = 4 × 27/30 × 27 = 108/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 90/810 < 108/810 or 9/81 < 4/30
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