Subtract 4/81 from 1/25
1/25 - 4/81 is -19/2025.
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,
1/25 = 1 × 81/25 × 81 = 81/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
4/81 = 4 × 25/81 × 25 = 100/2025 - Subtract the two like fractions:
81/2025 - 100/2025 = 81 - 100/2025 = -19/2025
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