Add 20/14 and 9/21
1st number: 1 6/14, 2nd number: 9/21
20/14 + 9/21 is 13/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
20/14 = 20 × 3/14 × 3 = 60/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
9/21 = 9 × 2/21 × 2 = 18/42 - Add the two like fractions:
60/42 + 18/42 = 60 + 18/42 = 78/42 - 78/42 simplified gives 13/7
- So, 20/14 + 9/21 = 13/7
In mixed form: 16/7
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