Add 21/3 and 70/8
1st number: 7 0/3, 2nd number: 8 6/8
21/3 + 70/8 is 63/4.
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,
70/8 = 70 × 3/8 × 3 = 210/24 - Add the two like fractions:
168/24 + 210/24 = 168 + 210/24 = 378/24 - 378/24 simplified gives 63/4
- So, 21/3 + 70/8 = 63/4
In mixed form: 153/4
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