Add 21/16 and 30/27
1st number: 1 5/16, 2nd number: 1 3/27
21/16 + 30/27 is 349/144.
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,
30/27 = 30 × 16/27 × 16 = 480/432 - Add the two like fractions:
567/432 + 480/432 = 567 + 480/432 = 1047/432 - 1047/432 simplified gives 349/144
- So, 21/16 + 30/27 = 349/144
In mixed form: 261/144
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