Answers

Add 3/21 and 45/7

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

3/21 + 45/7 is 46/7.

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,
   3/21 = 3 × 1/21 × 1 = 3/21
3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
   45/7 = 45 × 3/7 × 3 = 135/21
4. Add the two like fractions:
   3/21 + 135/21 = 3 + 135/21 = 138/21
5. 138/21 simplified gives 46/7
6. So, 3/21 + 45/7 = 46/7
   In mixed form: 64/7

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