Answers

Add 45/98 and 45/20

1^st number: 45/98, 2^nd number: 2 5/20

45/98 + 45/20 is 531/196.

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,
   45/98 = 45 × 10/98 × 10 = 450/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   45/20 = 45 × 49/20 × 49 = 2205/980
4. Add the two like fractions:
   450/980 + 2205/980 = 450 + 2205/980 = 2655/980
5. 2655/980 simplified gives 531/196
6. So, 45/98 + 45/20 = 531/196
   In mixed form: 2139/196

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