Add 81/14 and 70/84
1st number: 5 11/14, 2nd number: 70/84
81/14 + 70/84 is 139/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
81/14 = 81 × 6/14 × 6 = 486/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Add the two like fractions:
486/84 + 70/84 = 486 + 70/84 = 556/84 - 556/84 simplified gives 139/21
- So, 81/14 + 70/84 = 139/21
In mixed form: 613/21
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