Subtract 42/81 from 84/25
1st number: 3 9/25, 2nd number: 42/81
84/25 - 42/81 is 1918/675.
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,
84/25 = 84 × 81/25 × 81 = 6804/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
42/81 = 42 × 25/81 × 25 = 1050/2025 - Subtract the two like fractions:
6804/2025 - 1050/2025 = 6804 - 1050/2025 = 5754/2025 - After reducing the fraction, the answer is 1918/675
- In mixed form: 2568/675
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