Subtract 7/81 from 63/3
1st number: 21 0/3, 2nd number: 7/81
63/3 - 7/81 is 1694/81.
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,
63/3 = 63 × 27/3 × 27 = 1701/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
7/81 = 7 × 1/81 × 1 = 7/81 - Subtract the two like fractions:
1701/81 - 7/81 = 1701 - 7/81 = 1694/81 - In mixed form: 2074/81
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