Answers

Add 90/2 and 70/63

1^st number: 45 0/2, 2^nd number: 1 7/63

90/2 + 70/63 is 415/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 2 × 63 = 126,
   90/2 = 90 × 63/2 × 63 = 5670/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   70/63 = 70 × 2/63 × 2 = 140/126
4. Add the two like fractions:
   5670/126 + 140/126 = 5670 + 140/126 = 5810/126
5. 5810/126 simplified gives 415/9
6. So, 90/2 + 70/63 = 415/9
   In mixed form: 461/9

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