Answers

Add 32/21 and 84/90

1^st number: 1 11/21, 2^nd number: 84/90

32/21 + 84/90 is 86/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 21 × 30 = 630,
   32/21 = 32 × 30/21 × 30 = 960/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   84/90 = 84 × 7/90 × 7 = 588/630
4. Add the two like fractions:
   960/630 + 588/630 = 960 + 588/630 = 1548/630
5. 1548/630 simplified gives 86/35
6. So, 32/21 + 84/90 = 86/35
   In mixed form: 216/35

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