Add 21/8 and 18/3
1st number: 2 5/8, 2nd number: 6 0/3
21/8 + 18/3 is 69/8.
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,
21/8 = 21 × 3/8 × 3 = 63/24 - Likewise, for the 2nd fraction, since 3 × 8 = 24,
18/3 = 18 × 8/3 × 8 = 144/24 - Add the two like fractions:
63/24 + 144/24 = 63 + 144/24 = 207/24 - 207/24 simplified gives 69/8
- So, 21/8 + 18/3 = 69/8
In mixed form: 85/8
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