Subtract 20/7 from 80/18
1st number: 4 8/18, 2nd number: 2 6/7
80/18 - 20/7 is 100/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
80/18 = 80 × 7/18 × 7 = 560/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
20/7 = 20 × 18/7 × 18 = 360/126 - Subtract the two like fractions:
560/126 - 360/126 = 560 - 360/126 = 200/126 - After reducing the fraction, the answer is 100/63
- In mixed form: 137/63
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