Subtract 45/40 from 90/24
1st number: 3 18/24, 2nd number: 1 5/40
90/24 - 45/40 is 21/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
90/24 = 90 × 5/24 × 5 = 450/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120 - Subtract the two like fractions:
450/120 - 135/120 = 450 - 135/120 = 315/120 - After reducing the fraction, the answer is 21/8
- In mixed form: 25/8
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