Answers

Add 56/35 and 84/90

1^st number: 1 21/35, 2^nd number: 84/90

56/35 + 84/90 is 38/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 35 × 18 = 630,
   56/35 = 56 × 18/35 × 18 = 1008/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   84/90 = 84 × 7/90 × 7 = 588/630
4. Add the two like fractions:
   1008/630 + 588/630 = 1008 + 588/630 = 1596/630
5. 1596/630 simplified gives 38/15
6. So, 56/35 + 84/90 = 38/15
   In mixed form: 28/15

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