Add 84/56 and 21/54
1st number: 1 28/56, 2nd number: 21/54
84/56 + 21/54 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 54 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 56 × 27 = 1512,
84/56 = 84 × 27/56 × 27 = 2268/1512 - Likewise, for the 2nd fraction, since 54 × 28 = 1512,
21/54 = 21 × 28/54 × 28 = 588/1512 - Add the two like fractions:
2268/1512 + 588/1512 = 2268 + 588/1512 = 2856/1512 - 2856/1512 simplified gives 17/9
- So, 84/56 + 21/54 = 17/9
In mixed form: 18/9
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