Answers

Add 56/21 and 28/90

1^st number: 2 14/21, 2^nd number: 28/90

56/21 + 28/90 is 134/45.

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,
   28/90 = 28 × 7/90 × 7 = 196/630
4. Add the two like fractions:
   1680/630 + 196/630 = 1680 + 196/630 = 1876/630
5. 1876/630 simplified gives 134/45
6. So, 56/21 + 28/90 = 134/45
   In mixed form: 244/45

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