Answers

Add 81/70 and 35/4

1^st number: 1 11/70, 2^nd number: 8 3/4

81/70 + 35/4 is 1387/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 4 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 70 × 2 = 140,
   81/70 = 81 × 2/70 × 2 = 162/140
3. Likewise, for the 2nd fraction, since 4 × 35 = 140,
   35/4 = 35 × 35/4 × 35 = 1225/140
4. Add the two like fractions:
   162/140 + 1225/140 = 162 + 1225/140 = 1387/140
5. So, 81/70 + 35/4 = 1387/140
   In mixed form: 9127/140

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