What's 3/8 minus 3/4

Question

What is 3/8 minus 3/4 plese help and 3/8 and 3/4 is a fractiom

Answer 1

3/8 - 3/4 =

3/8 - (3/4)*(2/2) =

3/8 - 6/8 =

(3 - 6)/8 =

-3/8

Answer 2

Hi Nafis!

 

Here are two ways of thinking about it:

 

1)  Imagine 3/8 as 3/8 of a pizza.  Pizzas usually are broken into 8 slices, so 3/8 of a pizza is 3 slices.  Similarly, 3/4 of a pizza is (think about it) 6 slices.  So the problem is basically:

 

3 slices minus 6 slices

 

But you only have 3 slices to give!  So if you try to minus more than you have to give, you owe slices.  In this case, if you have 3 slices and you minus 6, you give all your slices away and still end up owing 3 slices.  That's -3 slices.  But slices are parts of a pizza so the answer is -3/8

 

2) 3/8 - 3/4 .  Find a *common denominator* --> in this case, 8.  Convert the 3/4 into an equal fraction with an 8 in the denominator by multiplying both numerator and denominator by 2.  Then the problem becomes:

3/8 - 6/8

 

Then, since 3 - 6 = -3, combine the numerators and you get:

 

-3/8

 

I hope at least one of those was helpful to you!  :)