Answers

Add 90/63 and 25/42

1^st number: 1 27/63, 2^nd number: 25/42

90/63 + 25/42 is 85/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 42 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   90/63 = 90 × 2/63 × 2 = 180/126
3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
   25/42 = 25 × 3/42 × 3 = 75/126
4. Add the two like fractions:
   180/126 + 75/126 = 180 + 75/126 = 255/126
5. 255/126 simplified gives 85/42
6. So, 90/63 + 25/42 = 85/42
   In mixed form: 21/42

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