0.720 is 18/25 as a fraction
How to convert decimals as fractions
What are fraction ?
Word “fraction” is derived from the Latin word fractus. It simply means how many parts of a whole we have. A fraction consists of a numerator, a slash and denominator. For example in the fraction 3/4, 3 is the numerator and 4 is the denominator.
Steps to convert 0.720 to fraction ?
Steps:
Step 1:
Write down the decimal divided by 1, like this:
decimal
1
Step 2:
Multiply both top and bottom by 10 for every number after the decimal point. (For
example,
if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.)
Step 3:
Simplify (or reduce) the fraction
Example: Convert 0.720 to a fraction
Step 1:
Write down 0.720 divided by 1:
0.720 1
Step 2:
Multiply both top and bottom by 1000 (because there are 3 digits after the decimal
point so that is
1000:
| × 1000 | ||
 |
||
| 0.720 1 | = | 720 1000 |
 |
||
| × 1000 | ||
(Do you see how it turns the top number into a whole number?)
Step 3:
Simplify the Fraction:
| ÷40 | ||
|
||
| 720 1000 | = | 18 25 |
|
||
| ÷40 | ||
Answer = 18 25
Note: 720/1000 is called a decimal fraction and 18/25 is called a common fraction !
How to read a fraction?
The simplest way to read fractions is to simply read them as numerator over denominator. Example, fraction 5/8 can be read as five over eight.
Example of fractions in real life - 1
Lets say in a school of 25 students, there are 18 boys and remaining are girls. We can then simply say the the fraction of boys in this school are 18/25 and ratio of boys to total students is 0.720
