Answers

Add 84/35 and 21/90

1^st number: 2 14/35, 2^nd number: 21/90

84/35 + 21/90 is 79/30.

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,
   84/35 = 84 × 18/35 × 18 = 1512/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   21/90 = 21 × 7/90 × 7 = 147/630
4. Add the two like fractions:
   1512/630 + 147/630 = 1512 + 147/630 = 1659/630
5. 1659/630 simplified gives 79/30
6. So, 84/35 + 21/90 = 79/30
   In mixed form: 219/30

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