Subtract 9/20 from 28/8
1st number: 3 4/8, 2nd number: 9/20
28/8 - 9/20 is 61/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
28/8 = 28 × 5/8 × 5 = 140/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
9/20 = 9 × 2/20 × 2 = 18/40 - Subtract the two like fractions:
140/40 - 18/40 = 140 - 18/40 = 122/40 - After reducing the fraction, the answer is 61/20
- In mixed form: 31/20
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