Thread: Gcd and lcm
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agentredlum
#49
Jul29-11, 02:52 AM
P: 460
Try gcd(30/7, 8/42) your method gives 2/42 or 1/21

Try gcd(30/7, 4/21) your method gives 2/21

8/42 = 4/21 but 1/21 does not equal 2/21



You can fix this if you reduce all fractions before computing but that does not gaurantee there are no other difficulties with your method.

I invite everyone to test my method in post #7