Answers

Add 42/63 and 2/70

42/63 + 2/70 is 73/105.

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,
   42/63 = 42 × 10/63 × 10 = 420/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   2/70 = 2 × 9/70 × 9 = 18/630
4. Add the two like fractions:
   420/630 + 18/630 = 420 + 18/630 = 438/630
5. 438/630 simplified gives 73/105
6. So, 42/63 + 2/70 = 73/105

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