Answers

Add 45/72 and 80/20

1^st number: 45/72, 2^nd number: 4 0/20

45/72 + 80/20 is 37/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 20 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   45/72 = 45 × 5/72 × 5 = 225/360
3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
   80/20 = 80 × 18/20 × 18 = 1440/360
4. Add the two like fractions:
   225/360 + 1440/360 = 225 + 1440/360 = 1665/360
5. 1665/360 simplified gives 37/8
6. So, 45/72 + 80/20 = 37/8
   In mixed form: 45/8

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