Add 21/16 and 90/27
1st number: 1 5/16, 2nd number: 3 9/27
21/16 + 90/27 is 223/48.
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,
90/27 = 90 × 16/27 × 16 = 1440/432 - Add the two like fractions:
567/432 + 1440/432 = 567 + 1440/432 = 2007/432 - 2007/432 simplified gives 223/48
- So, 21/16 + 90/27 = 223/48
In mixed form: 431/48
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