Subtract 20/80 from 75/20
1st number: 3 15/20, 2nd number: 20/80
75/20 - 20/80 is 7/2.
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,
75/20 = 75 × 4/20 × 4 = 300/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
20/80 = 20 × 1/80 × 1 = 20/80 - Subtract the two like fractions:
300/80 - 20/80 = 300 - 20/80 = 280/80 - After reducing the fraction, the answer is 7/2
- In mixed form: 31/2
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