Subtract 40/54 from 30/56
30/56 - 40/54 is -155/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 54 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 56 × 27 = 1512,
30/56 = 30 × 27/56 × 27 = 810/1512 - Likewise, for the 2nd fraction, since 54 × 28 = 1512,
40/54 = 40 × 28/54 × 28 = 1120/1512 - Subtract the two like fractions:
810/1512 - 1120/1512 = 810 - 1120/1512 = -310/1512 - After reducing the fraction, the answer is -155/756
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