Add 21/84 and 81/6
1st number: 21/84, 2nd number: 13 3/6
21/84 + 81/6 is 55/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 6 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
21/84 = 21 × 1/84 × 1 = 21/84 - Likewise, for the 2nd fraction, since 6 × 14 = 84,
81/6 = 81 × 14/6 × 14 = 1134/84 - Add the two like fractions:
21/84 + 1134/84 = 21 + 1134/84 = 1155/84 - 1155/84 simplified gives 55/4
- So, 21/84 + 81/6 = 55/4
In mixed form: 133/4
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