Compare 18/81 and 8/25
18/81 is smaller than 8/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 25 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 81 × 25 = 2025,
18/81 = 18 × 25/81 × 25 = 450/2025 - Likewise, for the 2nd fraction, since 25 × 81 = 2025,
8/25 = 8 × 81/25 × 81 = 648/2025 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 450/2025 < 648/2025 or 18/81 < 8/25
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