Add 15/4 and 21/3
1st number: 3 3/4, 2nd number: 7 0/3
15/4 + 21/3 is 43/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 3 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
15/4 = 15 × 3/4 × 3 = 45/12 - Likewise, for the 2nd fraction, since 3 × 4 = 12,
21/3 = 21 × 4/3 × 4 = 84/12 - Add the two like fractions:
45/12 + 84/12 = 45 + 84/12 = 129/12 - 129/12 simplified gives 43/4
- So, 15/4 + 21/3 = 43/4
In mixed form: 103/4
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