Subtract 72/81 from 6/25
6/25 - 72/81 is -146/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 25 × 81 = 2025,
6/25 = 6 × 81/25 × 81 = 486/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
72/81 = 72 × 25/81 × 25 = 1800/2025 - Subtract the two like fractions:
486/2025 - 1800/2025 = 486 - 1800/2025 = -1314/2025 - After reducing the fraction, the answer is -146/225
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