Subtract 4/21 from 80/18
1st number: 4 8/18, 2nd number: 4/21
80/18 - 4/21 is 268/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 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 21 × 6 = 126,
4/21 = 4 × 6/21 × 6 = 24/126 - Subtract the two like fractions:
560/126 - 24/126 = 560 - 24/126 = 536/126 - After reducing the fraction, the answer is 268/63
- In mixed form: 416/63
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