Subtract 54/56 from 42/18
1st number: 2 6/18, 2nd number: 54/56
42/18 - 54/56 is 115/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
42/18 = 42 × 28/18 × 28 = 1176/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
54/56 = 54 × 9/56 × 9 = 486/504 - Subtract the two like fractions:
1176/504 - 486/504 = 1176 - 486/504 = 690/504 - After reducing the fraction, the answer is 115/84
- In mixed form: 131/84
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