Answers

Add 84/35 and 90/12

1^st number: 2 14/35, 2^nd number: 7 6/12

84/35 + 90/12 is 99/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 12 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 35 × 12 = 420,
   84/35 = 84 × 12/35 × 12 = 1008/420
3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
   90/12 = 90 × 35/12 × 35 = 3150/420
4. Add the two like fractions:
   1008/420 + 3150/420 = 1008 + 3150/420 = 4158/420
5. 4158/420 simplified gives 99/10
6. So, 84/35 + 90/12 = 99/10
   In mixed form: 99/10

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