Add 21/16 and 28/27
1st number: 1 5/16, 2nd number: 1 1/27
21/16 + 28/27 is 1015/432.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 27 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 16 × 27 = 432,
21/16 = 21 × 27/16 × 27 = 567/432 - Likewise, for the 2nd fraction, since 27 × 16 = 432,
28/27 = 28 × 16/27 × 16 = 448/432 - Add the two like fractions:
567/432 + 448/432 = 567 + 448/432 = 1015/432 - So, 21/16 + 28/27 = 1015/432
In mixed form: 2151/432
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