Question

If you subtract 1/8 from a number and multiply the result by 1/4, you get 1/16.
What is the number?​

Answer 1

Answer: 3/8

Step-by-step explanation:

To find the solution, we can work backwards. The first thing to do is to reverse the multiplying by 1/4. I can do $\frac{\frac{1}{16}}{\frac{1}{4} }$. This is the same as multiplying 1/16 by 4, so you get 4/16 or 1/4. Now, we can reverse subtracting 1/8. I can add 1/8 to 1/4 to get 3/8, which will be your answer.

Now we can check our answer. 3/8-1/8=2/8, or 1/4. 1/4*1/4=1/16, so the answer is correct.