Answers

Add 4/70 and 81/42

1^st number: 4/70, 2^nd number: 1 39/42

4/70 + 81/42 is 139/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   4/70 = 4 × 3/70 × 3 = 12/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   81/42 = 81 × 5/42 × 5 = 405/210
4. Add the two like fractions:
   12/210 + 405/210 = 12 + 405/210 = 417/210
5. 417/210 simplified gives 139/70
6. So, 4/70 + 81/42 = 139/70
   In mixed form: 169/70

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