Subtract 50/81 from 10/45
10/45 - 50/81 is -32/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 45 × 9 = 405,
10/45 = 10 × 9/45 × 9 = 90/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
50/81 = 50 × 5/81 × 5 = 250/405 - Subtract the two like fractions:
90/405 - 250/405 = 90 - 250/405 = -160/405 - After reducing the fraction, the answer is -32/81
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