Question 223200
What you're basically asking is if {{{7/9=21/18}}} is true. 



{{{7/9=21/18}}} Start with the given equation.



{{{(7)(18)=(9)(21)}}} Cross multiply.



{{{126=189}}} Multiply.



Since the right side is the bigger of the two numbers, this means {{{126<189}}} which also means that {{{7/9<21/18}}}.



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Answer


So {{{7/9<21/18}}} which means that the two fractions {{{7/9}}} and {{{21/18}}} are not in proportion to one another.


So {{{7/9=21/18}}} is NOT a proportion.