Subtract 90/45 from 98/40
1st number: 2 18/40, 2nd number: 2 0/45
98/40 - 90/45 is 9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
98/40 = 98 × 9/40 × 9 = 882/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
90/45 = 90 × 8/45 × 8 = 720/360 - Subtract the two like fractions:
882/360 - 720/360 = 882 - 720/360 = 162/360 - After reducing the fraction, the answer is 9/20
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