Subtract 81/10 from 80/5
1st number: 16 0/5, 2nd number: 8 1/10
80/5 - 81/10 is 79/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
80/5 = 80 × 2/5 × 2 = 160/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
81/10 = 81 × 1/10 × 1 = 81/10 - Subtract the two like fractions:
160/10 - 81/10 = 160 - 81/10 = 79/10 - In mixed form: 79/10
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