Subtract 20/25 from 6/20
6/20 - 20/25 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
6/20 = 6 × 5/20 × 5 = 30/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
20/25 = 20 × 4/25 × 4 = 80/100 - Subtract the two like fractions:
30/100 - 80/100 = 30 - 80/100 = -50/100 - After reducing the fraction, the answer is -1/2
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