Subtract 2/81 from 20/16
1st number: 1 4/16, 2nd number: 2/81
20/16 - 2/81 is 397/324.
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,
20/16 = 20 × 81/16 × 81 = 1620/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
2/81 = 2 × 16/81 × 16 = 32/1296 - Subtract the two like fractions:
1620/1296 - 32/1296 = 1620 - 32/1296 = 1588/1296 - After reducing the fraction, the answer is 397/324
- In mixed form: 173/324
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