Subtract 84/63 from 45/56
1st number: 45/56, 2nd number: 1 21/63
45/56 - 84/63 is -89/168.
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,
45/56 = 45 × 9/56 × 9 = 405/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
84/63 = 84 × 8/63 × 8 = 672/504 - Subtract the two like fractions:
405/504 - 672/504 = 405 - 672/504 = -267/504 - After reducing the fraction, the answer is -89/168
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Related: 90/56-84/63