Subtract 81/10 from 4/90
1st number: 4/90, 2nd number: 8 1/10
4/90 - 81/10 is -145/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
81/10 = 81 × 9/10 × 9 = 729/90 - Subtract the two like fractions:
4/90 - 729/90 = 4 - 729/90 = -725/90 - After reducing the fraction, the answer is -145/18
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