Sumdog sometimes asks you to divide fractions by whole numbers. For example 1/5 ÷ 3 = ?
Help dividing fractions by a whole number
We know that there are two halves in one unit and we know that there are 4 quarters in one unit.
So one half must be the same as two quarters. 1/2 = 2/4.
If 1/2 = 2/4 then 1/2 ÷ 2 = 1/4. How do we do a sum to get this? We multiply the bottom number by the whole number.
From the fraction chart above we can see that 1/2 = 2/4 = 3/6 = 4/8 = 5/10 = 6/12.
We can also see that 2/4 ÷ 5 = 1/10. Here's how to do the sum and make the fraction as simple as possible.
We can also see that 2/4 ÷ 5 = 1/10. Here's how to do the sum and make the fraction as simple as possible.