Subtract 90/42 from 18/75
1st number: 18/75, 2nd number: 2 6/42
18/75 - 90/42 is -333/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
18/75 = 18 × 14/75 × 14 = 252/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
90/42 = 90 × 25/42 × 25 = 2250/1050 - Subtract the two like fractions:
252/1050 - 2250/1050 = 252 - 2250/1050 = -1998/1050 - After reducing the fraction, the answer is -333/175
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