Thanks for the answers but I must show the work for each problem.

Can someone please help now that I finally submitted the square root correctly,thanks to drwls, and
Ms. Sue.

Thank you

The slash (/) line represents that the number is a fraction.

divide:
sqrt45 / sqrt81 =

simplify:
7sqrt3 / sqrt5 =

Multiply:
sqrt7/sqrt8 X sqrt24/sqrt49 =

45 = 9 * 5

81 = 9 * 9

sqrt ( 45 ) / sqrt ( 81 ) =

sqrt ( 9 ) * sqrt ( 5 ) / sqrt ( 9 ) * sqrt ( 9 ) =

sqrt ( 5 ) / sqrt ( 9 ) =

sqrt ( 5 ) / 3

7sqrt ( 3 ) / sqrt ( 5 )

Cannot be simplified becouse 3 and 5 is primes numbers.

sqrt(7)/sqrt(8) * sqrt(24)/sqrt(49) =

[sqrt(7)/sqrt(8)] * [ sqrt(3) * sqrt(8) / sqrt(7) * sqrt(7) ] =

sqrt ( 3 / 7 )