- #1
PcumP_Ravenclaw
- 106
- 4
Member warned about posting homework problems in non-homework sections
Show that there are infinitely many rational numbers ## \frac{a +m*c}{b + m*d} ## between the two rational numbers ## a/b## ##c/d ##. m is any positive integer.
My attempt:
first make common denominator
##
\frac{a*d}{b*d}##
##\frac{c*b}{d*b}
##
all numbers going from ##a*d## to ##c*b## divided by ##b*d## is in this interval. but these are finite so we have to increase the resolution. say multiply numerator and denominator by 1000 so now ## a*d*1000 ## to ## c*b*1000 ## divided by ## b*d*1000 ## .
It can be 100000 or anything very large say multiplied to infinity. how do I write this mathematically?
My attempt:
first make common denominator
##
\frac{a*d}{b*d}##
##\frac{c*b}{d*b}
##
all numbers going from ##a*d## to ##c*b## divided by ##b*d## is in this interval. but these are finite so we have to increase the resolution. say multiply numerator and denominator by 1000 so now ## a*d*1000 ## to ## c*b*1000 ## divided by ## b*d*1000 ## .
It can be 100000 or anything very large say multiplied to infinity. how do I write this mathematically?