Add 21/3 and 6/7
1st number: 7 0/3, 2nd number: 6/7
213 + 67 is 557.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
213 = 21 × 73 × 7 = 14721 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
67 = 6 × 37 × 3 = 1821 - Add the two like fractions:
14721 + 1821 = 147 + 1821 = 16521 - 165/21 simplified gives 557
- So, 21/3 + 6/7 = 55/7
In mixed form: 767
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