Add 21/3 and 15/8
1st number: 7 0/3, 2nd number: 1 7/8
21/3 + 15/8 is 71/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
21/3 = 21 × 8/3 × 8 = 168/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
15/8 = 15 × 3/8 × 3 = 45/24 - Add the two like fractions:
168/24 + 45/24 = 168 + 45/24 = 213/24 - 213/24 simplified gives 71/8
- So, 21/3 + 15/8 = 71/8
In mixed form: 87/8
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