Answers

Add 40/42 and 70/84

40/42 + 70/84 is 25/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 84 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 42 × 2 = 84,
   40/42 = 40 × 2/42 × 2 = 80/84
3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
   70/84 = 70 × 1/84 × 1 = 70/84
4. Add the two like fractions:
   80/84 + 70/84 = 80 + 70/84 = 150/84
5. 150/84 simplified gives 25/14
6. So, 40/42 + 70/84 = 25/14
   In mixed form: 111/14

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