Answers

Add 80/42 and 40/35

1^st number: 1 38/42, 2^nd number: 1 5/35

80/42 + 40/35 is 64/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 35 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   80/42 = 80 × 5/42 × 5 = 400/210
3. Likewise, for the 2nd fraction, since 35 × 6 = 210,
   40/35 = 40 × 6/35 × 6 = 240/210
4. Add the two like fractions:
   400/210 + 240/210 = 400 + 240/210 = 640/210
5. 640/210 simplified gives 64/21
6. So, 80/42 + 40/35 = 64/21
   In mixed form: 31/21

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