Add 84/16 and 84/21
1st number: 5 4/16, 2nd number: 4 0/21
84/16 + 84/21 is 37/4.
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,
84/21 = 84 × 16/21 × 16 = 1344/336 - Add the two like fractions:
1764/336 + 1344/336 = 1764 + 1344/336 = 3108/336 - 3108/336 simplified gives 37/4
- So, 84/16 + 84/21 = 37/4
In mixed form: 91/4
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