Subtract 12/7 from 80/60
1st number: 1 20/60, 2nd number: 1 5/7
80/60 - 12/7 is -8/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
12/7 = 12 × 60/7 × 60 = 720/420 - Subtract the two like fractions:
560/420 - 720/420 = 560 - 720/420 = -160/420 - After reducing the fraction, the answer is -8/21
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