Subtract 8/7 from 20/75
1st number: 20/75, 2nd number: 1 1/7
20/75 - 8/7 is -92/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
20/75 = 20 × 7/75 × 7 = 140/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
8/7 = 8 × 75/7 × 75 = 600/525 - Subtract the two like fractions:
140/525 - 600/525 = 140 - 600/525 = -460/525 - After reducing the fraction, the answer is -92/105
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