Add 15/21 and 28/14
1st number: 15/21, 2nd number: 2 0/14
15/21 + 28/14 is 19/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
28/14 = 28 × 3/14 × 3 = 84/42 - Add the two like fractions:
30/42 + 84/42 = 30 + 84/42 = 114/42 - 114/42 simplified gives 19/7
- So, 15/21 + 28/14 = 19/7
In mixed form: 25/7
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