Answers

Add 30/21 and 42/63

1^st number: 1 9/21, 2^nd number: 42/63

30/21 + 42/63 is 44/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 63 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 21 × 3 = 63,
   30/21 = 30 × 3/21 × 3 = 90/63
3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
   42/63 = 42 × 1/63 × 1 = 42/63
4. Add the two like fractions:
   90/63 + 42/63 = 90 + 42/63 = 132/63
5. 132/63 simplified gives 44/21
6. So, 30/21 + 42/63 = 44/21
   In mixed form: 22/21

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