Subtract 75/81 from 9/56
9/56 - 75/81 is -1157/1512.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
9/56 = 9 × 81/56 × 81 = 729/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
75/81 = 75 × 56/81 × 56 = 4200/4536 - Subtract the two like fractions:
729/4536 - 4200/4536 = 729 - 4200/4536 = -3471/4536 - After reducing the fraction, the answer is -1157/1512
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