Subtract 4/30 from 81/15
1st number: 5 6/15, 2nd number: 4/30
81/15 - 4/30 is 79/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
81/15 = 81 × 2/15 × 2 = 162/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
4/30 = 4 × 1/30 × 1 = 4/30 - Subtract the two like fractions:
162/30 - 4/30 = 162 - 4/30 = 158/30 - After reducing the fraction, the answer is 79/15
- In mixed form: 54/15
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