Add 6/9 and 3/7
6/9 + 3/7 is 23/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
6/9 = 6 × 7/9 × 7 = 42/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
3/7 = 3 × 9/7 × 9 = 27/63 - Add the two like fractions:
42/63 + 27/63 = 42 + 27/63 = 69/63 - 69/63 simplified gives 23/21
- So, 6/9 + 3/7 = 23/21
In mixed form: 12/21
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