Subtract 9/81 from 5/10
5/10 - 9/81 is 7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
5/10 = 5 × 81/10 × 81 = 405/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
9/81 = 9 × 10/81 × 10 = 90/810 - Subtract the two like fractions:
405/810 - 90/810 = 405 - 90/810 = 315/810 - After reducing the fraction, the answer is 7/18
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