Subtract 18/24 from 90/45
1st number: 2 0/45, 2nd number: 18/24
90/45 - 18/24 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
90/45 = 90 × 8/45 × 8 = 720/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
18/24 = 18 × 15/24 × 15 = 270/360 - Subtract the two like fractions:
720/360 - 270/360 = 720 - 270/360 = 450/360 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
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