Answers

Add 45/80 and 40/20

1^st number: 45/80, 2^nd number: 2 0/20

45/80 + 40/20 is 41/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   45/80 = 45 × 1/80 × 1 = 45/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   40/20 = 40 × 4/20 × 4 = 160/80
4. Add the two like fractions:
   45/80 + 160/80 = 45 + 160/80 = 205/80
5. 205/80 simplified gives 41/16
6. So, 45/80 + 40/20 = 41/16
   In mixed form: 29/16

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