Answers

Add 84/70 and 90/6

1^st number: 1 14/70, 2^nd number: 15 0/6

84/70 + 90/6 is 81/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 6 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   84/70 = 84 × 3/70 × 3 = 252/210
3. Likewise, for the 2nd fraction, since 6 × 35 = 210,
   90/6 = 90 × 35/6 × 35 = 3150/210
4. Add the two like fractions:
   252/210 + 3150/210 = 252 + 3150/210 = 3402/210
5. 3402/210 simplified gives 81/5
6. So, 84/70 + 90/6 = 81/5
   In mixed form: 161/5

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