Subtract 27/8 from 90/63
1st number: 1 27/63, 2nd number: 3 3/8
90/63 - 27/8 is -109/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
27/8 = 27 × 63/8 × 63 = 1701/504 - Subtract the two like fractions:
720/504 - 1701/504 = 720 - 1701/504 = -981/504 - After reducing the fraction, the answer is -109/56
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