Subtract 8/90 from 81/10
1st number: 8 1/10, 2nd number: 8/90
81/10 - 8/90 is 721/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
81/10 = 81 × 9/10 × 9 = 729/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
8/90 = 8 × 1/90 × 1 = 8/90 - Subtract the two like fractions:
729/90 - 8/90 = 729 - 8/90 = 721/90 - In mixed form: 81/90
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