Add 5/21 and 27/16
1st number: 5/21, 2nd number: 1 11/16
5/21 + 27/16 is 647/336.
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,
5/21 = 5 × 16/21 × 16 = 80/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
27/16 = 27 × 21/16 × 21 = 567/336 - Add the two like fractions:
80/336 + 567/336 = 80 + 567/336 = 647/336 - So, 5/21 + 27/16 = 647/336
In mixed form: 1311/336
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