Add 21/16 and 5/21
1st number: 1 5/16, 2nd number: 5/21
21/16 + 5/21 is 521/336.
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,
21/16 = 21 × 21/16 × 21 = 441/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
5/21 = 5 × 16/21 × 16 = 80/336 - Add the two like fractions:
441/336 + 80/336 = 441 + 80/336 = 521/336 - So, 21/16 + 5/21 = 521/336
In mixed form: 1185/336
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