Subtract 18/72 from 1/56
1/56 - 18/72 is -13/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
1/56 = 1 × 9/56 × 9 = 9/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Subtract the two like fractions:
9/504 - 126/504 = 9 - 126/504 = -117/504 - After reducing the fraction, the answer is -13/56
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