Write decimal as fractions in simplest form 8.1

Express the following ratios in their simplest form 8:15

Write the following function in the simplest form : "tan"^(-1)1/(sqrt(x^(2)-1)),|x|gt1

Write the following function in the simplest form : "tan"^(-1)(sqrt(1+x^(2))-1)/x, x!=0

Write the following function in the simplest form : tan^(-1)(sqrt((1-cosx)/(1+cos))),0ltxltpi

Write the following function in the simplest form : "tan"^(-1)x/(sqrt(a^(2)-x^(2))),|x|lta

Write the following function in the simplest form : tan^(-1)((cosx-sinx)/(cosx+sinx)),(-pi)/4ltxlt(3pi)/4

Write the following rationals in decimal form using Theorem 1.1 (7218)/(3^(2).5^(2))

Write the following rationals in decimal form using Theorem 1.1 (143)/(110)

Write the following rationals in decimal form using Theorem 1.1 (13)/(25)

Write the following rationals in decimal form using Theorem 1.1 (23)/(2^(3)5^(2))