Answers

Add 90/5 and 70/63

1^st number: 18 0/5, 2^nd number: 1 7/63

90/5 + 70/63 is 172/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 5 × 63 = 315,
   90/5 = 90 × 63/5 × 63 = 5670/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   70/63 = 70 × 5/63 × 5 = 350/315
4. Add the two like fractions:
   5670/315 + 350/315 = 5670 + 350/315 = 6020/315
5. 6020/315 simplified gives 172/9
6. So, 90/5 + 70/63 = 172/9
   In mixed form: 191/9

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