1/4 X 8/5 = 18/45
Doesn't it?
Greg
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1/4 X 8/5 = 18/45
Doesn't it?
Greg
Nope!
I don't get it can you do that?
nope its 4/10ths i think
.25 x 1.6 = .4 = 2/5Quote:
Originally Posted by Greg Ward
Cheers
(1x8) / (4X5) = 8/20 (2/5) or 0.4 as Calm said.:)Quote:
Originally Posted by Greg Ward
Hey There,
My calcs come out the same as Calm but where did you get 18/45 from???:no:
1/4 x 8/5 = 8/20 =2/5
once I wrote it down I see where the 18/45 came from the little x means multiply:rolleyes:
HazzaB
This was kind of what i was thinking.
In order to deal with fractions you always have to find the common denominator. For this calculation I've used 20. IE:
1/4 = 5/20 and 8/5 = 32/20.
5/20 x 32/20 = 160/400.
Break 160/400 down and it equals 2/5.
2 div 5 = 0.4.
1 inch = 25.4mm
Multiply 0.4 x 25.4 = 10.16mm.
Hope I haven't confuddled anyone! :;
But 1/4 X 8/4
is not the same as 18/44
or
1/4 X 8/3
is not the same as 18/43
Whereas 1/4 X 8/5 = 18/45 = 0.4
Why?
Quote:
Originally Posted by Greg Ward
Hey Where did you learn numbers from, that don't work either :no:
18/45 = 18 divided by 45 which = 0.4
Corrected. Thanks.
Should have been 0.4
But don't criticize my maths.
I'll give you another example:
1/2 X 5/4
or
1 x 5
-----------
2 x 4
= 15/24 = 5/8
try it for
1 x 5
--------
2 x 6
..... This does not equal 15/26
Greg
:UGreg have you been cutting too much Camphor again?
Hey Greg,
1 x 5 = 5
--------- ---
2 x 4 = 8 the 15/24 is just lucky (This happens now and again)
the next one is
1 x 5 = 5
--------- ---
2 x 6 = 12 equals 10/24 if you want to be silly
HazzaB
1/2 x 5/6 doesn't equal 15/26..... sorry
There are only 14 'solutions'
1,2,5,4
(1/2 x 5/4 = 15/24) etc.
1 4 8 5
1 6 4 3
1 6 6 4
1 9 9 5
2 1 4 5
2 6 6 5
4 1 5 8
4 9 9 8
6 1 3 4
6 1 4 6
6 2 5 6
9 1 5 9
9 4 8 9
and others where the numerator and denominator are the same number.
I'm not what sure this all means,,,,,,,,
Time for a beer I think
Regards
Greg