Subtract 81/6 from 81/30
1st number: 2 21/30, 2nd number: 13 3/6
81/30 - 81/6 is -54/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
81/30 = 81 × 1/30 × 1 = 81/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
81/6 = 81 × 5/6 × 5 = 405/30 - Subtract the two like fractions:
81/30 - 405/30 = 81 - 405/30 = -324/30 - After reducing the fraction, the answer is -54/5
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