Subtract 20/8 from 90/2
1st number: 45 0/2, 2nd number: 2 4/8
90/2 - 20/8 is 85/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 2 × 4 = 8,
90/2 = 90 × 4/2 × 4 = 360/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
20/8 = 20 × 1/8 × 1 = 20/8 - Subtract the two like fractions:
360/8 - 20/8 = 360 - 20/8 = 340/8 - After reducing the fraction, the answer is 85/2
- In mixed form: 421/2
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