Answers

Add 28/20 and 36/64

1^st number: 1 8/20, 2^nd number: 36/64

28/20 + 36/64 is 157/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 64 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 20 × 16 = 320,
   28/20 = 28 × 16/20 × 16 = 448/320
3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
   36/64 = 36 × 5/64 × 5 = 180/320
4. Add the two like fractions:
   448/320 + 180/320 = 448 + 180/320 = 628/320
5. 628/320 simplified gives 157/80
6. So, 28/20 + 36/64 = 157/80
   In mixed form: 177/80

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