Subtract 28/80 from 84/20
1st number: 4 4/20, 2nd number: 28/80
84/20 - 28/80 is 77/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
84/20 = 84 × 4/20 × 4 = 336/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
28/80 = 28 × 1/80 × 1 = 28/80 - Subtract the two like fractions:
336/80 - 28/80 = 336 - 28/80 = 308/80 - After reducing the fraction, the answer is 77/20
- In mixed form: 317/20
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