Answers

Add 18/64 and 80/40

1^st number: 18/64, 2^nd number: 2 0/40

18/64 + 80/40 is 73/32.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 40 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 64 × 5 = 320,
   18/64 = 18 × 5/64 × 5 = 90/320
3. Likewise, for the 2nd fraction, since 40 × 8 = 320,
   80/40 = 80 × 8/40 × 8 = 640/320
4. Add the two like fractions:
   90/320 + 640/320 = 90 + 640/320 = 730/320
5. 730/320 simplified gives 73/32
6. So, 18/64 + 80/40 = 73/32
   In mixed form: 29/32

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