Answers

Add 7/21 and 42/9

1^st number: 7/21, 2^nd number: 4 6/9

7/21 + 42/9 is 5/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 9 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 21 × 3 = 63,
   7/21 = 7 × 3/21 × 3 = 21/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   42/9 = 42 × 7/9 × 7 = 294/63
4. Add the two like fractions:
   21/63 + 294/63 = 21 + 294/63 = 315/63
5. 315/63 simplified gives 5/1
6. So, 7/21 + 42/9 = 5/1

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