Answers

Add 7/63 and 80/42

1^st number: 7/63, 2^nd number: 1 38/42

7/63 + 80/42 is 127/63.

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,
   7/63 = 7 × 2/63 × 2 = 14/126
3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
   80/42 = 80 × 3/42 × 3 = 240/126
4. Add the two like fractions:
   14/126 + 240/126 = 14 + 240/126 = 254/126
5. 254/126 simplified gives 127/63
6. So, 7/63 + 80/42 = 127/63
   In mixed form: 21/63

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