Answers

Add 8/63 and 7/70

8/63 + 7/70 is 143/630.

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,
   8/63 = 8 × 10/63 × 10 = 80/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   7/70 = 7 × 9/70 × 9 = 63/630
4. Add the two like fractions:
   80/630 + 63/630 = 80 + 63/630 = 143/630
5. So, 8/63 + 7/70 = 143/630

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