Subtract 81/30 from 28/5
1st number: 5 3/5, 2nd number: 2 21/30
28/5 - 81/30 is 29/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
28/5 = 28 × 6/5 × 6 = 168/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
81/30 = 81 × 1/30 × 1 = 81/30 - Subtract the two like fractions:
168/30 - 81/30 = 168 - 81/30 = 87/30 - After reducing the fraction, the answer is 29/10
- In mixed form: 29/10
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