Subtract 90/98 from 18/75
18/75 - 90/98 is -831/1225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 98 is 7350
Next, find the equivalent fraction of both fractional numbers with denominator 7350 - For the 1st fraction, since 75 × 98 = 7350,
18/75 = 18 × 98/75 × 98 = 1764/7350 - Likewise, for the 2nd fraction, since 98 × 75 = 7350,
90/98 = 90 × 75/98 × 75 = 6750/7350 - Subtract the two like fractions:
1764/7350 - 6750/7350 = 1764 - 6750/7350 = -4986/7350 - After reducing the fraction, the answer is -831/1225
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