Answers

Add 20/49 and 90/20

1^st number: 20/49, 2^nd number: 4 10/20

20/49 + 90/20 is 481/98.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 49 × 20 = 980,
   20/49 = 20 × 20/49 × 20 = 400/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   90/20 = 90 × 49/20 × 49 = 4410/980
4. Add the two like fractions:
   400/980 + 4410/980 = 400 + 4410/980 = 4810/980
5. 4810/980 simplified gives 481/98
6. So, 20/49 + 90/20 = 481/98
   In mixed form: 489/98

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