Subtract 40/25 from 5/81
1st number: 5/81, 2nd number: 1 15/25
5/81 - 40/25 is -623/405.
Steps for subtracting 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,
5/81 = 5 × 25/81 × 25 = 125/2025 - Likewise, for the 2nd fraction, since 25 × 81 = 2025,
40/25 = 40 × 81/25 × 81 = 3240/2025 - Subtract the two like fractions:
125/2025 - 3240/2025 = 125 - 3240/2025 = -3115/2025 - After reducing the fraction, the answer is -623/405
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