Answers

Add 56/21 and 35/90

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

56/21 + 35/90 is 55/18.

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,
   56/21 = 56 × 30/21 × 30 = 1680/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   35/90 = 35 × 7/90 × 7 = 245/630
4. Add the two like fractions:
   1680/630 + 245/630 = 1680 + 245/630 = 1925/630
5. 1925/630 simplified gives 55/18
6. So, 56/21 + 35/90 = 55/18
   In mixed form: 31/18

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