Subtract 90/63 from 30/56
1st number: 30/56, 2nd number: 1 27/63
30/56 - 90/63 is -25/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
30/56 = 30 × 9/56 × 9 = 270/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Subtract the two like fractions:
270/504 - 720/504 = 270 - 720/504 = -450/504 - After reducing the fraction, the answer is -25/28
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