Add 80/42 and 7/9
1st number: 1 38/42, 2nd number: 7/9
80/42 + 7/9 is 169/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
80/42 = 80 × 3/42 × 3 = 240/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
7/9 = 7 × 14/9 × 14 = 98/126 - Add the two like fractions:
240/126 + 98/126 = 240 + 98/126 = 338/126 - 338/126 simplified gives 169/63
- So, 80/42 + 7/9 = 169/63
In mixed form: 243/63
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