Question

What is 1/10 of 2(10)+4(1)+6(1/10)+7(1/100)+8(1/1000)

Answer 1

2(10)+4(1)+6(1/10)+7(1/100)+8(1/1000)

20 + 4 + 6/10 + 7/100 + 8/1000

24.678

Answer 2

In arithmetic "of" means multiplication, so

1/10 of 2(10)+4(1)+6(1/10)+7(1/100)+8(1/1000)
= (1/10)(20) + 4 + .6 + .07 + .008
= 2+4+.6+.07+.008
= 6.678

http://www.wolframalpha.com/input/?i=evaluate+1%2F10+*+2(10)%2B4(1)%2B6(1%2F10)%2B7(1%2F100)%2B8(1%2F1000)

if you meant:
(1/10)[(20) + 4 + .6 + .07 + .008] , then
= (1/10)[24.678)
= 2.4678
But that's not what you typed.
http://www.wolframalpha.com/input/?i=evaluate+(2(10)%2B4(1)%2B6(1%2F10)%2B7(1%2F100)%2B8(1%2F1000))%2F10

Answer 3

I didn't see the "1/10 of".