Answers

Add 25/42 and 70/4

1^st number: 25/42, 2^nd number: 17 2/4

25/42 + 70/4 is 380/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 4 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 42 × 2 = 84,
   25/42 = 25 × 2/42 × 2 = 50/84
3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
   70/4 = 70 × 21/4 × 21 = 1470/84
4. Add the two like fractions:
   50/84 + 1470/84 = 50 + 1470/84 = 1520/84
5. 1520/84 simplified gives 380/21
6. So, 25/42 + 70/4 = 380/21
   In mixed form: 182/21

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