Answers

Add 84/14 and 40/90

1^st number: 6 0/14, 2^nd number: 40/90

84/14 + 40/90 is 58/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 14 × 45 = 630,
   84/14 = 84 × 45/14 × 45 = 3780/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   40/90 = 40 × 7/90 × 7 = 280/630
4. Add the two like fractions:
   3780/630 + 280/630 = 3780 + 280/630 = 4060/630
5. 4060/630 simplified gives 58/9
6. So, 84/14 + 40/90 = 58/9
   In mixed form: 64/9

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