Add 21/6 and 20/7
1st number: 3 3/6, 2nd number: 2 6/7
21/6 + 20/7 is 89/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
21/6 = 21 × 7/6 × 7 = 147/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
20/7 = 20 × 6/7 × 6 = 120/42 - Add the two like fractions:
147/42 + 120/42 = 147 + 120/42 = 267/42 - 267/42 simplified gives 89/14
- So, 21/6 + 20/7 = 89/14
In mixed form: 65/14
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