Add 81/42 and 18/9
1st number: 1 39/42, 2nd number: 2 0/9
81/42 + 18/9 is 55/14.
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,
81/42 = 81 × 3/42 × 3 = 243/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
18/9 = 18 × 14/9 × 14 = 252/126 - Add the two like fractions:
243/126 + 252/126 = 243 + 252/126 = 495/126 - 495/126 simplified gives 55/14
- So, 81/42 + 18/9 = 55/14
In mixed form: 313/14
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