Subtract 45/81 from 12/25
12/25 - 45/81 is -17/225.
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,
12/25 = 12 × 81/25 × 81 = 972/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
45/81 = 45 × 25/81 × 25 = 1125/2025 - Subtract the two like fractions:
972/2025 - 1125/2025 = 972 - 1125/2025 = -153/2025 - After reducing the fraction, the answer is -17/225
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