Subtract 90/15 from 18/56
1st number: 18/56, 2nd number: 6 0/15
18/56 - 90/15 is -159/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
18/56 = 18 × 15/56 × 15 = 270/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
90/15 = 90 × 56/15 × 56 = 5040/840 - Subtract the two like fractions:
270/840 - 5040/840 = 270 - 5040/840 = -4770/840 - After reducing the fraction, the answer is -159/28
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