Subtract 20/75 from 9/56
9/56 - 20/75 is -89/840.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 75 is 4200
Next, find the equivalent fraction of both fractional numbers with denominator 4200 - For the 1st fraction, since 56 × 75 = 4200,
9/56 = 9 × 75/56 × 75 = 675/4200 - Likewise, for the 2nd fraction, since 75 × 56 = 4200,
20/75 = 20 × 56/75 × 56 = 1120/4200 - Subtract the two like fractions:
675/4200 - 1120/4200 = 675 - 1120/4200 = -445/4200 - After reducing the fraction, the answer is -89/840
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