How does (10/8) equal 45

Yeah....I think it's a combination........we have

C(10, 8)  = [ 10! ] / [(10 - 8)! * 8!] =  [10!] / [2! * 8!]   =  [10 * 9] / 2   = 90 / 2   = 45

$${\frac{{\mathtt{10}}}{{\mathtt{8}}}} = {\mathtt{1.25}}$$

10/8 does not equal 45

$${\frac{{\frac{{\frac{{\mathtt{10}}}{{\mathtt{8}}}}}{{\mathtt{2}}}}}{{\mathtt{2}}}} = {\frac{{\mathtt{5}}}{{\mathtt{4}}}}$$

$${\frac{{\mathtt{5}}}{{\mathtt{4}}}}$$=1 1/4

$${\frac{{\frac{{\mathtt{1}}}{{\mathtt{4}}}}{\mathtt{\,\times\,}}{\mathtt{25}}}{{\mathtt{25}}}} = {\frac{{\mathtt{25}}}{{\mathtt{100}}}}$$

$$1 25/100= 1.25$$

i have no idea how you got 45, but that is not correct

it equals actually 125!

TR - you forgot the decimal point in your final answer.     

combination ?