Answers

Add 75/21 and 6/7

1^st number: 3 12/21, 2^nd number: 6/7

75/21 + 6/7 is 31/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 7 is 21
   
   Next, find the equivalent fraction of both fractional numbers with denominator 21
2. For the 1st fraction, since 21 × 1 = 21,
   75/21 = 75 × 1/21 × 1 = 75/21
3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
   6/7 = 6 × 3/7 × 3 = 18/21
4. Add the two like fractions:
   75/21 + 18/21 = 75 + 18/21 = 93/21
5. 93/21 simplified gives 31/7
6. So, 75/21 + 6/7 = 31/7
   In mixed form: 43/7

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