Subtract 84/81 from 25/49
1st number: 25/49, 2nd number: 1 3/81
25/49 - 84/81 is -697/1323.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 81 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 49 × 81 = 3969,
25/49 = 25 × 81/49 × 81 = 2025/3969 - Likewise, for the 2nd fraction, since 81 × 49 = 3969,
84/81 = 84 × 49/81 × 49 = 4116/3969 - Subtract the two like fractions:
2025/3969 - 4116/3969 = 2025 - 4116/3969 = -2091/3969 - After reducing the fraction, the answer is -697/1323
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