Answers

Add 80/15 and 63/42

1^st number: 5 5/15, 2^nd number: 1 21/42

80/15 + 63/42 is 41/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   80/15 = 80 × 14/15 × 14 = 1120/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   63/42 = 63 × 5/42 × 5 = 315/210
4. Add the two like fractions:
   1120/210 + 315/210 = 1120 + 315/210 = 1435/210
5. 1435/210 simplified gives 41/6
6. So, 80/15 + 63/42 = 41/6
   In mixed form: 65/6

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