Answers

Add 3/70 and 4/63

3/70 + 4/63 is 67/630.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   3/70 = 3 × 9/70 × 9 = 27/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   4/63 = 4 × 10/63 × 10 = 40/630
4. Add the two like fractions:
   27/630 + 40/630 = 27 + 40/630 = 67/630
5. So, 3/70 + 4/63 = 67/630

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