Answers

Add 90/63 and 75/10

1^st number: 1 27/63, 2^nd number: 7 5/10

90/63 + 75/10 is 125/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 10 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   90/63 = 90 × 10/63 × 10 = 900/630
3. Likewise, for the 2nd fraction, since 10 × 63 = 630,
   75/10 = 75 × 63/10 × 63 = 4725/630
4. Add the two like fractions:
   900/630 + 4725/630 = 900 + 4725/630 = 5625/630
5. 5625/630 simplified gives 125/14
6. So, 90/63 + 75/10 = 125/14
   In mixed form: 813/14

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