Add 84/21 and 21/16
1st number: 4 0/21, 2nd number: 1 5/16
84/21 + 21/16 is 85/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
84/21 = 84 × 16/21 × 16 = 1344/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
21/16 = 21 × 21/16 × 21 = 441/336 - Add the two like fractions:
1344/336 + 441/336 = 1344 + 441/336 = 1785/336 - 1785/336 simplified gives 85/16
- So, 84/21 + 21/16 = 85/16
In mixed form: 55/16
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