Add 12/42 and 80/9
1st number: 12/42, 2nd number: 8 8/9
12/42 + 80/9 is 578/63.
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,
12/42 = 12 × 3/42 × 3 = 36/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
80/9 = 80 × 14/9 × 14 = 1120/126 - Add the two like fractions:
36/126 + 1120/126 = 36 + 1120/126 = 1156/126 - 1156/126 simplified gives 578/63
- So, 12/42 + 80/9 = 578/63
In mixed form: 911/63
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