Answers

Add 7/98 and 45/20

1^st number: 7/98, 2^nd number: 2 5/20

7/98 + 45/20 is 65/28.

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,
   7/98 = 7 × 10/98 × 10 = 70/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   45/20 = 45 × 49/20 × 49 = 2205/980
4. Add the two like fractions:
   70/980 + 2205/980 = 70 + 2205/980 = 2275/980
5. 2275/980 simplified gives 65/28
6. So, 7/98 + 45/20 = 65/28
   In mixed form: 29/28

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