Add 3/15 and 21/9
1st number: 3/15, 2nd number: 2 3/9
3/15 + 21/9 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
3/15 = 3 × 3/15 × 3 = 9/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
21/9 = 21 × 5/9 × 5 = 105/45 - Add the two like fractions:
9/45 + 105/45 = 9 + 105/45 = 114/45 - 114/45 simplified gives 38/15
- So, 3/15 + 21/9 = 38/15
In mixed form: 28/15
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