Add 15/14 and 28/21
1st number: 1 1/14, 2nd number: 1 7/21
15/14 + 28/21 is 101/42.
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,
15/14 = 15 × 3/14 × 3 = 45/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
28/21 = 28 × 2/21 × 2 = 56/42 - Add the two like fractions:
45/42 + 56/42 = 45 + 56/42 = 101/42 - So, 15/14 + 28/21 = 101/42
In mixed form: 217/42
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