Answers

Add 98/20 and 40/25

1^st number: 4 18/20, 2^nd number: 1 15/25

98/20 + 40/25 is 13/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 25 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 20 × 5 = 100,
   98/20 = 98 × 5/20 × 5 = 490/100
3. Likewise, for the 2nd fraction, since 25 × 4 = 100,
   40/25 = 40 × 4/25 × 4 = 160/100
4. Add the two like fractions:
   490/100 + 160/100 = 490 + 160/100 = 650/100
5. 650/100 simplified gives 13/2
6. So, 98/20 + 40/25 = 13/2
   In mixed form: 61/2

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