Answers

Add 70/30 and 18/63

1^st number: 2 10/30, 2^nd number: 18/63

70/30 + 18/63 is 55/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 30 × 21 = 630,
   70/30 = 70 × 21/30 × 21 = 1470/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   18/63 = 18 × 10/63 × 10 = 180/630
4. Add the two like fractions:
   1470/630 + 180/630 = 1470 + 180/630 = 1650/630
5. 1650/630 simplified gives 55/21
6. So, 70/30 + 18/63 = 55/21
   In mixed form: 213/21

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