Answers

Add 63/18 and 81/70

1^st number: 3 9/18, 2^nd number: 1 11/70

63/18 + 81/70 is 163/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 18 × 35 = 630,
   63/18 = 63 × 35/18 × 35 = 2205/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   81/70 = 81 × 9/70 × 9 = 729/630
4. Add the two like fractions:
   2205/630 + 729/630 = 2205 + 729/630 = 2934/630
5. 2934/630 simplified gives 163/35
6. So, 63/18 + 81/70 = 163/35
   In mixed form: 423/35

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