Subtract 7/81 from 25/16
1st number: 1 9/16, 2nd number: 7/81
25/16 - 7/81 is 1913/1296.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
25/16 = 25 × 81/16 × 81 = 2025/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
7/81 = 7 × 16/81 × 16 = 112/1296 - Subtract the two like fractions:
2025/1296 - 112/1296 = 2025 - 112/1296 = 1913/1296 - In mixed form: 1617/1296
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