Add 28/3 and 21/18
1st number: 9 1/3, 2nd number: 1 3/18
28/3 + 21/18 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
28/3 = 28 × 6/3 × 6 = 168/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Add the two like fractions:
168/18 + 21/18 = 168 + 21/18 = 189/18 - 189/18 simplified gives 21/2
- So, 28/3 + 21/18 = 21/2
In mixed form: 101/2
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