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so if i see A x D = B x C and i need to know A??? how do i write that?
lol so if you want the missing denomiator on the right???????
my way still works??????
thx for your help im just tryimng to remember a rule if there is one?????
so i,ll try to remember it by if i cover the missing numerator that denominator goes up
if i cover the missing denominator the other fraction switches???
this should work in any x1/x2= y2/y1 equation shouldn't it ?????
thank you thats what i have but what i did
S1/S2 = N2/N1 = 500/S2= 60/5
then i cross multiplied i switched the 60 and the 5
but how do i know which fraction to switch?
my question is basicly.... if i was to switch the 500/S2
i would get a different awnswer or if the N2 was the missing number
i cant remember the rule on which fraction to switch when i cross multiply
Help its been awhile since Ive done these and im getting miixed up looking thru my old notes
this is for speed caluations
I have... driver speed x number of teeth = driven speed x number of teeth
or s1/s2=n2/n1
or input speed = # teeth in driven
_________ _____________
output speed #teeth in driver
now i have an gear with 500 rpm input speed driver has 5 teeth driven has 60 teeth
so now i put down 500/s2=60/5
so i,m getting mixed up with cross multiplying
how do know which numerator and denominator to switch??????
does the s1 always stay the denominator ?????? can any one give me some tips???
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