Subtract 70/40 from 80/60
1st number: 1 20/60, 2nd number: 1 30/40
80/60 - 70/40 is -5/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
80/60 = 80 × 2/60 × 2 = 160/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
70/40 = 70 × 3/40 × 3 = 210/120 - Subtract the two like fractions:
160/120 - 210/120 = 160 - 210/120 = -50/120 - After reducing the fraction, the answer is -5/12
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