Subtract 98/80 from 8/90
1st number: 8/90, 2nd number: 1 18/80
8/90 - 98/80 is -409/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
8/90 = 8 × 8/90 × 8 = 64/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
98/80 = 98 × 9/80 × 9 = 882/720 - Subtract the two like fractions:
64/720 - 882/720 = 64 - 882/720 = -818/720 - After reducing the fraction, the answer is -409/360
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