0.80 is 4/5 as a 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.
0.80 1
× 100 | ||
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0.80 1 | = | 80 100 |
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× 100 |
(Do you see how it turns the top number into a whole number?)
÷20 | ||
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80 100 | = | 4 5 |
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÷20 |
Note: 80/100 is called a decimal fraction and 4/5 is called a common 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.
Lets say in a school of 5 students, there are 4 boys and remaining are girls. We can then simply say the the fraction of boys in this school are 4/5 and ratio of boys to total students is 0.80