Answers

Add 15/98 and 90/20

1^st number: 15/98, 2^nd number: 4 10/20

15/98 + 90/20 is 228/49.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 98 × 10 = 980,
   15/98 = 15 × 10/98 × 10 = 150/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   90/20 = 90 × 49/20 × 49 = 4410/980
4. Add the two like fractions:
   150/980 + 4410/980 = 150 + 4410/980 = 4560/980
5. 4560/980 simplified gives 228/49
6. So, 15/98 + 90/20 = 228/49
   In mixed form: 432/49

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