Add 18/21 and 12/6
1st number: 18/21, 2nd number: 2 0/6
18/21 + 12/6 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
12/6 = 12 × 7/6 × 7 = 84/42 - Add the two like fractions:
36/42 + 84/42 = 36 + 84/42 = 120/42 - 120/42 simplified gives 20/7
- So, 18/21 + 12/6 = 20/7
In mixed form: 26/7
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