Answers

Add 56/90 and 98/20

1^st number: 56/90, 2^nd number: 4 18/20

56/90 + 98/20 is 497/90.

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,
   98/20 = 98 × 9/20 × 9 = 882/180
4. Add the two like fractions:
   112/180 + 882/180 = 112 + 882/180 = 994/180
5. 994/180 simplified gives 497/90
6. So, 56/90 + 98/20 = 497/90
   In mixed form: 547/90

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