Subtract 70/25 from 20/80
1st number: 20/80, 2nd number: 2 20/25
20/80 - 70/25 is -51/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
20/80 = 20 × 5/80 × 5 = 100/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
70/25 = 70 × 16/25 × 16 = 1120/400 - Subtract the two like fractions:
100/400 - 1120/400 = 100 - 1120/400 = -1020/400 - After reducing the fraction, the answer is -51/20
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