Subtract 30/36 from 81/30
1st number: 2 21/30, 2nd number: 30/36
81/30 - 30/36 is 28/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
81/30 = 81 × 6/30 × 6 = 486/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
30/36 = 30 × 5/36 × 5 = 150/180 - Subtract the two like fractions:
486/180 - 150/180 = 486 - 150/180 = 336/180 - After reducing the fraction, the answer is 28/15
- In mixed form: 113/15
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