Subtract 10/45 from 80/81
80/81 - 10/45 is 62/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 45 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
80/81 = 80 × 5/81 × 5 = 400/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
10/45 = 10 × 9/45 × 9 = 90/405 - Subtract the two like fractions:
400/405 - 90/405 = 400 - 90/405 = 310/405 - After reducing the fraction, the answer is 62/81
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