(12C) Add or Subtract Fractions

[Albert Chan]

(09-19-2018 07:55 AM)Gamo Wrote:  Remark: This Multiply or Divide program will not work with negative fractions.

Try this challenging example: 676/13 x 3117/22

Answer: 81042/11 or 7367+ 5/11

Even on a fast 12C+ took about 10 seconds to compute.

Why is above a challenging example ?

gcd(676*3117, 13*22) = gcd(2107092, 286) = gcd(130, 286) = gcd(130, 26) = 26 should not take long ...

-> fraction = (2107092/26) / (286/26) = 81042 / 11

BTW, there is no need to implement fraction division
Just replace CHS with X<>Y , multiply fraction inverse = fraction division