Answers

Add 3/63 and 9/70

3/63 + 9/70 is 37/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   3/63 = 3 × 10/63 × 10 = 30/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   9/70 = 9 × 9/70 × 9 = 81/630
4. Add the two like fractions:
   30/630 + 81/630 = 30 + 81/630 = 111/630
5. 111/630 simplified gives 37/210
6. So, 3/63 + 9/70 = 37/210

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