Subtract 81/10 from 30/2
1st number: 15 0/2, 2nd number: 8 1/10
30/2 - 81/10 is 69/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
30/2 = 30 × 5/2 × 5 = 150/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
81/10 = 81 × 1/10 × 1 = 81/10 - Subtract the two like fractions:
150/10 - 81/10 = 150 - 81/10 = 69/10 - In mixed form: 69/10
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