Subtract 20/81 from 15/3
1st number: 5 0/3, 2nd number: 20/81
15/3 - 20/81 is 385/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
15/3 = 15 × 27/3 × 27 = 405/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
20/81 = 20 × 1/81 × 1 = 20/81 - Subtract the two like fractions:
405/81 - 20/81 = 405 - 20/81 = 385/81 - In mixed form: 461/81
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