Answers

Add 8/63 and 16/70

8/63 + 16/70 is 16/45.

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,
   16/70 = 16 × 9/70 × 9 = 144/630
4. Add the two like fractions:
   80/630 + 144/630 = 80 + 144/630 = 224/630
5. 224/630 simplified gives 16/45
6. So, 8/63 + 16/70 = 16/45

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