Add 21/84 and 54/14
1st number: 21/84, 2nd number: 3 12/14
21/84 + 54/14 is 115/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 14 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 14 × 6 = 84,
54/14 = 54 × 6/14 × 6 = 324/84 - Add the two like fractions:
21/84 + 324/84 = 21 + 324/84 = 345/84 - 345/84 simplified gives 115/28
- So, 21/84 + 54/14 = 115/28
In mixed form: 43/28
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