Subtract 81/10 from 40/2
1st number: 20 0/2, 2nd number: 8 1/10
40/2 - 81/10 is 119/10.
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,
40/2 = 40 × 5/2 × 5 = 200/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
81/10 = 81 × 1/10 × 1 = 81/10 - Subtract the two like fractions:
200/10 - 81/10 = 200 - 81/10 = 119/10 - In mixed form: 119/10
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