find the whole when:3/4=21

enlightenedplease help me with this maths question.the question is: find the number when :

       3/4=21 help me as fast as you can please i ask u  very much.thank youlaughyes

        

 

 

                                       yours sincerly :maria

 

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1 Answer

(3/4)x=21

x=21/(3/4)

=(4/3)*21

=7*4

=28
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