Subtract 18/90 from 98/40
1st number: 2 18/40, 2nd number: 18/90
98/40 - 18/90 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 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 90 × 4 = 360,
18/90 = 18 × 4/90 × 4 = 72/360 - Subtract the two like fractions:
882/360 - 72/360 = 882 - 72/360 = 810/360 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
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