Subtract 50/81 from 25/40
25/40 - 50/81 is 5/648.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
25/40 = 25 × 81/40 × 81 = 2025/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
50/81 = 50 × 40/81 × 40 = 2000/3240 - Subtract the two like fractions:
2025/3240 - 2000/3240 = 2025 - 2000/3240 = 25/3240 - After reducing the fraction, the answer is 5/648
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