Add 84/8 and 21/3
1st number: 10 4/8, 2nd number: 7 0/3
84/8 + 21/3 is 35/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 3 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
84/8 = 84 × 3/8 × 3 = 252/24 - Likewise, for the 2nd fraction, since 3 × 8 = 24,
21/3 = 21 × 8/3 × 8 = 168/24 - Add the two like fractions:
252/24 + 168/24 = 252 + 168/24 = 420/24 - 420/24 simplified gives 35/2
- So, 84/8 + 21/3 = 35/2
In mixed form: 171/2
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