Subtract 98/90 from 80/75
1st number: 1 5/75, 2nd number: 1 8/90
80/75 - 98/90 is -1/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
80/75 = 80 × 6/75 × 6 = 480/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
98/90 = 98 × 5/90 × 5 = 490/450 - Subtract the two like fractions:
480/450 - 490/450 = 480 - 490/450 = -10/450 - After reducing the fraction, the answer is -1/45
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