Laura walks 1 1/2 miles in 3/5 hour. Lauras job is 4 1/2 miles away. She starts walking at 9:00am, will she arrive on time if her work starts at 11:00 am?

Question

please help with this

Answer 1

Make two fractions with miles in the numerator and hours in the denominator. 

 

Set them equal to each other.

 

For example, Mary walks 15 miles in 6 hours                            15/6 =45/x

                   Mary walks 45 miles in how many hours?

 

Your fractions will have fractions in them and look a bit intimidating.

 

**Recall that to solve this equation we can cross multiply and solve the resulting equation.

 

For example, 15•x =6•45

                        x = 18

 

**You will be multiplying mixed numbers so you should turn them into reduced fractions.

 

For example, 3 1/2 = 7/2

 

**Recall that to multiply fractions, just multiply strait across.

 

For example, 2/3 •4/7 = 8/21