Subtract 20/7 from 80/5
1st number: 16 0/5, 2nd number: 2 6/7
80/5 - 20/7 is 92/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
80/5 = 80 × 7/5 × 7 = 560/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
20/7 = 20 × 5/7 × 5 = 100/35 - Subtract the two like fractions:
560/35 - 100/35 = 560 - 100/35 = 460/35 - After reducing the fraction, the answer is 92/7
- In mixed form: 131/7
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