Answers

Add 40/20 and 45/12

1^st number: 2 0/20, 2^nd number: 3 9/12

40/20 + 45/12 is 23/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 12 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 20 × 3 = 60,
   40/20 = 40 × 3/20 × 3 = 120/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   45/12 = 45 × 5/12 × 5 = 225/60
4. Add the two like fractions:
   120/60 + 225/60 = 120 + 225/60 = 345/60
5. 345/60 simplified gives 23/4
6. So, 40/20 + 45/12 = 23/4
   In mixed form: 53/4

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