Answers

Add 1/63 and 90/70

1^st number: 1/63, 2^nd number: 1 20/70

1/63 + 90/70 is 82/63.

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,
   1/63 = 1 × 10/63 × 10 = 10/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   90/70 = 90 × 9/70 × 9 = 810/630
4. Add the two like fractions:
   10/630 + 810/630 = 10 + 810/630 = 820/630
5. 820/630 simplified gives 82/63
6. So, 1/63 + 90/70 = 82/63
   In mixed form: 119/63

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