Answers

Add 5/42 and 81/70

1^st number: 5/42, 2^nd number: 1 11/70

5/42 + 81/70 is 134/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   5/42 = 5 × 5/42 × 5 = 25/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   81/70 = 81 × 3/70 × 3 = 243/210
4. Add the two like fractions:
   25/210 + 243/210 = 25 + 243/210 = 268/210
5. 268/210 simplified gives 134/105
6. So, 5/42 + 81/70 = 134/105
   In mixed form: 129/105

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