Add 15/3 and 21/30
1st number: 5 0/3, 2nd number: 21/30
15/3 + 21/30 is 57/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
15/3 = 15 × 10/3 × 10 = 150/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Add the two like fractions:
150/30 + 21/30 = 150 + 21/30 = 171/30 - 171/30 simplified gives 57/10
- So, 15/3 + 21/30 = 57/10
In mixed form: 57/10
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