Question

Louisa biked 50 4/5 miles in 4 hours. How many miles did she bike per hour?

Answer 1

She biked 40 miles in 4 hours

Answer 2

Answer:

$\frac{127}{10} = 12.7$

Step-by-step explanation:

First, let's convert our mixed fraction 50 4/5, into an improper fraction. In order to do that, we can find an equivalent fraction to 50:

$50 = \frac{50}{1} = \frac{250}{5}$

Now, adding the 4/5, we get

$50 + 4/5 = \frac{250}{5} + 4/5 = \frac{254}{5}$

As we know how much she biked in four hours, we will divide it by 4, in order to get how much she biked in one hour.

$\frac{254/5}{4} = \frac{245/5}{4/1}$

Now we divide these fractions. We can do that multiplying 254*1= 254 and 4*5=20 and dividing that:

$\frac{254}{20}$

Finally, we have to simplify the fraction

$\frac{254}{20} = \frac{127}{10}$