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

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`

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`

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`