How do you write 1 3/8 as a decimal?

3 Answers
Aug 5, 2017

1.375

Explanation:

First, we have to convert it to a fractional number.

=> 1 3/8

=> ((1*8)+3)/8

=>(8+3)/8

=> 11/8

Now we can easily convert it to a decimal by dividing by 8

The answer in decimal is 1.375

Aug 5, 2017

1 3/8 = 1.375

Explanation:

Decimal notation is a way of writing fractions which have their denominators as powers of 10

Change 1 3/8 into a fraction with a power of 10 in the denominator.

It helps to know that 8 xx 125 = 1000

1 + color(blue)(3/8xx125/125) = 1 + color(blue)(375/1000)

The whole number is 1 and the fraction part is 375/1000

1 3/8 = 1.375

See below

Explanation:

To turn a fraction to a decimal you need to know some rules.
1 3/8 must be turned into an improper fraction.

To do this you need to:

1 get the denominator (bottom number)
2 multiply it by your whole number and
3 add the numerator (top number) .

So step 1and2

8xx1 will give you 8

Step 3
8+3 will give you 11

The next rule is to keep your denominator the same as it is on your given fraction which is 8 and on top for the numerator you need to have your total answer which is 11

Therefore:
11/8 is your fraction that needs to be turned into a decimal.

To do this you simply d1vide 11 by 8

11/8=1.375

Hope this gave you an idea of how to turn any fraction into a decimal. You can do this with any fraction.
E.g. 4/8= 0.5
9/45=0.2
7/49=0.143