Subtract 90/80 from 20/5
1st number: 4 0/5, 2nd number: 1 10/80
20/5 - 90/80 is 23/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
20/5 = 20 × 16/5 × 16 = 320/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
90/80 = 90 × 1/80 × 1 = 90/80 - Subtract the two like fractions:
320/80 - 90/80 = 320 - 90/80 = 230/80 - After reducing the fraction, the answer is 23/8
- In mixed form: 27/8
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