Subtract 30/18 from 45/56
1st number: 45/56, 2nd number: 1 12/18
45/56 - 30/18 is -145/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 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 18 × 28 = 504,
30/18 = 30 × 28/18 × 28 = 840/504 - Subtract the two like fractions:
405/504 - 840/504 = 405 - 840/504 = -435/504 - After reducing the fraction, the answer is -145/168
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