Subtract 75/81 from 7/63
7/63 - 75/81 is -22/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 63 × 9 = 567,
7/63 = 7 × 9/63 × 9 = 63/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
75/81 = 75 × 7/81 × 7 = 525/567 - Subtract the two like fractions:
63/567 - 525/567 = 63 - 525/567 = -462/567 - After reducing the fraction, the answer is -22/27
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