Add 5/2 and 21/15
1st number: 2 1/2, 2nd number: 1 6/15
5/2 + 21/15 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
5/2 = 5 × 15/2 × 15 = 75/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Add the two like fractions:
75/30 + 42/30 = 75 + 42/30 = 117/30 - 117/30 simplified gives 39/10
- So, 5/2 + 21/15 = 39/10
In mixed form: 39/10
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