Subtract 20/80 from 28/8
1st number: 3 4/8, 2nd number: 20/80
28/8 - 20/80 is 13/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
28/8 = 28 × 10/8 × 10 = 280/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
20/80 = 20 × 1/80 × 1 = 20/80 - Subtract the two like fractions:
280/80 - 20/80 = 280 - 20/80 = 260/80 - After reducing the fraction, the answer is 13/4
- In mixed form: 31/4
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