A: ### Quick Answer

**Forty minutes is two-thirds of an hour.** A fraction is found by setting up a ratio between a whole and its parts. The denominator, is the total number of parts, while the numerator, indicates how many parts are involved.

In this instance, the whole is one hour, which is equivalent to 60 minutes; therefore, the fraction is 40/60. To make the answer more useful, it should be simplified. To do this, find the largest number that is a factor of both the numerator and the denominator. The number 20 divides evenly into both 40 and 60, leaving the fraction 2/3.

Learn more about Fractions & PercentagesSources:

- Q:
## What is 0.45 as a fraction?

A:

Full Answer >**The number 0.45 written as a fraction is 45/100 or 9/20.**Convert any decimal to a fraction by making the number behind the decimal point the numerator of the fraction and choosing the appropriate denominator: 1 followed by the same number of zeros as digits after the decimal.Filed Under: - Q:
## What is 7.5 as a fraction?

A:

Full Answer >**One way to write the number 7.5 as a fraction is 75/10.**This answer is easy to obtain because it only involves moving the decimal one place to the right. Since 7.5 is equal to 7.5 over one, then moving the decimal place to the right gives 75 over 10.Filed Under: - Q:
## How do you write a decimal as a fraction?

A:To write a decimal as a fraction, first write a fraction with the decimal as the numerator and the integer one as the denominator. Then perform a mathematical operation on the fraction to get rid of the decimal point and simplify the fraction.

Full Answer >Filed Under: - Q:
## What is a unit fraction?

A:

Full Answer >**A unit fraction is a fraction where the top number, known as the numerator, is one, and the bottom number, known as the denominator, is any positive number.**Additionally, the denominator must be an integer, or round number.Filed Under: