Verified Answer :

Neuron

This is not a difficult question and I will help you solve it :)

When calculating 1/10 from 40, what we have to do is this:

(1/10) * 40 = 4 

This means that we have to multiply 40 by 1 and divide by 10 :)

So the answer in this case is 4. 

TSO

'of' in mathematics means multiplication

\(\frac{1}{10} \times 40 = \frac{40}{10} = \frac{4\times 10}{1\times 10} = \frac{4}{1} = \boxed{4}\)