Answers

Add 70/63 and 90/4

1^st number: 1 7/63, 2^nd number: 22 2/4

70/63 + 90/4 is 425/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 4 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   70/63 = 70 × 4/63 × 4 = 280/252
3. Likewise, for the 2nd fraction, since 4 × 63 = 252,
   90/4 = 90 × 63/4 × 63 = 5670/252
4. Add the two like fractions:
   280/252 + 5670/252 = 280 + 5670/252 = 5950/252
5. 5950/252 simplified gives 425/18
6. So, 70/63 + 90/4 = 425/18
   In mixed form: 2311/18

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