Add 81/42 and 3/14
1st number: 1 39/42, 2nd number: 3/14
81/42 + 3/14 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 14 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 14 × 3 = 42,
3/14 = 3 × 3/14 × 3 = 9/42 - Add the two like fractions:
81/42 + 9/42 = 81 + 9/42 = 90/42 - 90/42 simplified gives 15/7
- So, 81/42 + 3/14 = 15/7
In mixed form: 21/7
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