Add 80/21 and 1/18
1st number: 3 17/21, 2nd number: 1/18
80/21 + 1/18 is 487/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
80/21 = 80 × 6/21 × 6 = 480/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
1/18 = 1 × 7/18 × 7 = 7/126 - Add the two like fractions:
480/126 + 7/126 = 480 + 7/126 = 487/126 - So, 80/21 + 1/18 = 487/126
In mixed form: 3109/126
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