Question

express the following in the from of pby q where p,q are integers and q not equal to 0
first question. 0.43 bar
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Answer 1

0.43 bar = 0.4343434343434343 and so on

lets consider 0.434343( and so on) as x

so 100x= 43.43434343 (and so on)

or 100x= 43 + x      (because 0.434343(and so on) is equal to x)

or 99x= 43

or x = 43/99

so x= 0.43434343.. = 43/99

so 0.43 bar = 43/99

hope this helps you