Answers

Add 45/30 and 70/63

1^st number: 1 15/30, 2^nd number: 1 7/63

45/30 + 70/63 is 47/18.

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,
   45/30 = 45 × 21/30 × 21 = 945/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   70/63 = 70 × 10/63 × 10 = 700/630
4. Add the two like fractions:
   945/630 + 700/630 = 945 + 700/630 = 1645/630
5. 1645/630 simplified gives 47/18
6. So, 45/30 + 70/63 = 47/18
   In mixed form: 211/18

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