Compare 7/30 and 25/81
7/30 is smaller than 25/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
7/30 = 7 × 27/30 × 27 = 189/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
25/81 = 25 × 10/81 × 10 = 250/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 189/810 < 250/810 or 7/30 < 25/81
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