Answers

Add 3/84 and 90/8

1^st number: 3/84, 2^nd number: 11 2/8

3/84 + 90/8 is 79/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   3/84 = 3 × 2/84 × 2 = 6/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   90/8 = 90 × 21/8 × 21 = 1890/168
4. Add the two like fractions:
   6/168 + 1890/168 = 6 + 1890/168 = 1896/168
5. 1896/168 simplified gives 79/7
6. So, 3/84 + 90/8 = 79/7
   In mixed form: 112/7

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