Answers

Add 80/42 and 56/8

1^st number: 1 38/42, 2^nd number: 7 0/8

80/42 + 56/8 is 187/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 42 × 4 = 168,
   80/42 = 80 × 4/42 × 4 = 320/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   56/8 = 56 × 21/8 × 21 = 1176/168
4. Add the two like fractions:
   320/168 + 1176/168 = 320 + 1176/168 = 1496/168
5. 1496/168 simplified gives 187/21
6. So, 80/42 + 56/8 = 187/21
   In mixed form: 819/21

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