Add 28/14 and 18/21
1st number: 2 0/14, 2nd number: 18/21
28/14 + 18/21 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
28/14 = 28 × 3/14 × 3 = 84/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42 - Add the two like fractions:
84/42 + 36/42 = 84 + 36/42 = 120/42 - 120/42 simplified gives 20/7
- So, 28/14 + 18/21 = 20/7
In mixed form: 26/7
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