Answers

Add 15/63 and 98/70

1^st number: 15/63, 2^nd number: 1 28/70

15/63 + 98/70 is 172/105.

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,
   15/63 = 15 × 10/63 × 10 = 150/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   98/70 = 98 × 9/70 × 9 = 882/630
4. Add the two like fractions:
   150/630 + 882/630 = 150 + 882/630 = 1032/630
5. 1032/630 simplified gives 172/105
6. So, 15/63 + 98/70 = 172/105
   In mixed form: 167/105

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