Answers

Add 90/63 and 20/48

1^st number: 1 27/63, 2^nd number: 20/48

90/63 + 20/48 is 155/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 48 is 1008
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1008
2. For the 1st fraction, since 63 × 16 = 1008,
   90/63 = 90 × 16/63 × 16 = 1440/1008
3. Likewise, for the 2nd fraction, since 48 × 21 = 1008,
   20/48 = 20 × 21/48 × 21 = 420/1008
4. Add the two like fractions:
   1440/1008 + 420/1008 = 1440 + 420/1008 = 1860/1008
5. 1860/1008 simplified gives 155/84
6. So, 90/63 + 20/48 = 155/84
   In mixed form: 171/84

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