Add 8/84 and 27/21
1st number: 8/84, 2nd number: 1 6/21
8/84 + 27/21 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
8/84 = 8 × 1/84 × 1 = 8/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
27/21 = 27 × 4/21 × 4 = 108/84 - Add the two like fractions:
8/84 + 108/84 = 8 + 108/84 = 116/84 - 116/84 simplified gives 29/21
- So, 8/84 + 27/21 = 29/21
In mixed form: 18/21
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