Answers

Add 9/63 and 21/10

1^st number: 9/63, 2^nd number: 2 1/10

9/63 + 21/10 is 157/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 10 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   9/63 = 9 × 10/63 × 10 = 90/630
3. Likewise, for the 2nd fraction, since 10 × 63 = 630,
   21/10 = 21 × 63/10 × 63 = 1323/630
4. Add the two like fractions:
   90/630 + 1323/630 = 90 + 1323/630 = 1413/630
5. 1413/630 simplified gives 157/70
6. So, 9/63 + 21/10 = 157/70
   In mixed form: 217/70

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