Answers

Add 70/63 and 40/18

1^st number: 1 7/63, 2^nd number: 2 4/18

70/63 + 40/18 is 10/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   70/63 = 70 × 2/63 × 2 = 140/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   40/18 = 40 × 7/18 × 7 = 280/126
4. Add the two like fractions:
   140/126 + 280/126 = 140 + 280/126 = 420/126
5. 420/126 simplified gives 10/3
6. So, 70/63 + 40/18 = 10/3
   In mixed form: 31/3

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