Add 21/6 and 18/5
1st number: 3 3/6, 2nd number: 3 3/5
21/6 + 18/5 is 71/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
18/5 = 18 × 6/5 × 6 = 108/30 - Add the two like fractions:
105/30 + 108/30 = 105 + 108/30 = 213/30 - 213/30 simplified gives 71/10
- So, 21/6 + 18/5 = 71/10
In mixed form: 71/10
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