Question

Express 7/40 as a percent

Answer 1

Answer: 17.5%

Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100.

So to write 7/40 as a percent, we need to find a fraction equivalent to 7/40 that has a 100 in the denominator.

We can do this by setting up a proportion.

$So$ $we$ $have$  $\frac{7}{40} = \frac{n}{100}$

Now we can use cross products to find the missing value.

$So$ $we$ $have$ $7$ $x$ $100$ $which$ $is$ $700$ = $40$ $times$ $n$ $or$ $40n.$

700 = 40n

Next, dividing both sides of the equation by 40, we have 17.5 = n.

So, 7/40 is equal to 17.5/100 or 17.5%.