Add 81/42 and 15/6
1st number: 1 39/42, 2nd number: 2 3/6
81/42 + 15/6 is 31/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
81/42 = 81 × 1/42 × 1 = 81/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
15/6 = 15 × 7/6 × 7 = 105/42 - Add the two like fractions:
81/42 + 105/42 = 81 + 105/42 = 186/42 - 186/42 simplified gives 31/7
- So, 81/42 + 15/6 = 31/7
In mixed form: 43/7
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