Answers

Add 84/42 and 6/40

1^st number: 2 0/42, 2^nd number: 6/40

84/42 + 6/40 is 43/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 42 × 20 = 840,
   84/42 = 84 × 20/42 × 20 = 1680/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   6/40 = 6 × 21/40 × 21 = 126/840
4. Add the two like fractions:
   1680/840 + 126/840 = 1680 + 126/840 = 1806/840
5. 1806/840 simplified gives 43/20
6. So, 84/42 + 6/40 = 43/20
   In mixed form: 23/20

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