21 divided by 5. Whats the improper fraction and the mixed number, please?

↳Redirected from "Suppose that I don't have a formula for #g(x)# but I know that #g(1) = 3# and #g'(x) = sqrt(x^2+15)# for all x. How do I use a linear approximation to estimate #g(0.9)# and #g(1.1)#?"
1 Answer
Alan P.
Jul 9, 2016

#21 div5#
#color(white)("XXX")=color(red)(21/5color(white)("XXX")"improper fraction")#

#color(white)("XXX")=color(blue)(4 1/5color(white)("XXX")"mixed number"#

Explanation:

I assume this is just a problem of being uncertain of the definitions for #color(red)("improper fraction")# and #color(blue)("mixed number")#.

Hopefully, this example will clarify these terms.

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