Answers

Add 56/90 and 45/20

1^st number: 56/90, 2^nd number: 2 5/20

56/90 + 45/20 is 517/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   56/90 = 56 × 2/90 × 2 = 112/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   45/20 = 45 × 9/20 × 9 = 405/180
4. Add the two like fractions:
   112/180 + 405/180 = 112 + 405/180 = 517/180
5. So, 56/90 + 45/20 = 517/180
   In mixed form: 2157/180

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