Subtract 70/20 from 80/25
1st number: 3 5/25, 2nd number: 3 10/20
80/25 - 70/20 is -3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
80/25 = 80 × 4/25 × 4 = 320/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
70/20 = 70 × 5/20 × 5 = 350/100 - Subtract the two like fractions:
320/100 - 350/100 = 320 - 350/100 = -30/100 - After reducing the fraction, the answer is -3/10
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