Add 84/16 and 9/21
1st number: 5 4/16, 2nd number: 9/21
84/16 + 9/21 is 159/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
84/16 = 84 × 21/16 × 21 = 1764/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
9/21 = 9 × 16/21 × 16 = 144/336 - Add the two like fractions:
1764/336 + 144/336 = 1764 + 144/336 = 1908/336 - 1908/336 simplified gives 159/28
- So, 84/16 + 9/21 = 159/28
In mixed form: 519/28
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