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Q: How do you know if a fraction is in its simplest form in your head?

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If the GCF of the numerator and the denominator is 1, the fraction is in its simplest form.

Since the numerator of the fraction is prime, you know that the fraction 13/15 is in its simplest form.

If the GCF of the numerator and the denominator is 1, the fraction is in its simplest form.

The fraction will be in its simplest form when the highest common factor of the numerator and denominator is 1

You know a fraction is in its simplest form when neither the numerator (the number on top) nor the denominator (the number on bottom) have any prime factors in common, in other words, when their GCF is 1.

We know that the decimal 0.6 is six tenths. That is written as 6/10, and this fraction can be reduced. Dividing both numerator and denominator by 2, we'll find that 3/5 is the fraction in simplest form.

you really don't know this?

When the GCF of the numerator and denominator is 1.

A fraction is in its simplest form when the greatest common factor of its numerator and denominator is 1

If the greatest common factor of the numerator and denominator is 1 then it is in simplest form.

Since the denominator of the fraction is prime, you know that 14/23 is already expressed in its simplest form.

Since the numerator of the fraction is prime, we know that 89/100 is already expressed in its simplest form.

Some people can look at the fraction 4/8 and know that the simplest form is 1/2 but what's really happening is they are dividing 4 and 8 by 4 to get the answer. 4 is the GCF of 4 and 8. If you divide a fraction by the GCF of the numerator and the denominator, the result will be the simplest form of the fraction.

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the answer is 11/200 go to a different website to know why its that answer

You know a fraction is in it's simplest form whenone of the numbers is prime. This makes perfect sense because a prime number can only be divided by 1 and itself!

To write 0.45 as a fraction in simplest terms, start by writing it as a fraction. 0.45 is 45 hundredths, so the fraction is 45/100. Next, you need to find the GCF of 45 and 100. You know that 5 will divide evenly into both numbers, and that dividing 5 into the numerator and denominator is 9/25. Since there are no factors that will divide into 9 and 25, the fraction is in simplest form.

Your question is unclear.If you are trying to find a fraction it implies you do not know what it is, otherwise you would not be trying to find it.Fractions are generally reduced to their simplest form for clarity.

It is: 15/24 or 5/8 in its simplest form

don't know lol sorry :D i am stupid

A fraction is in its simplest form if its denominator (bottom half of the fraction) and numerator (top half of the fraction) cannot be divided by the same number to equal a fraction with whole numbers in the numerator and denominator. [When you 'cancel' a fraction out (divide it to get a smaller fraction, closer to the simplest form) you must do the same sum to the numerator AND the denominator, so you must be able to divide the numerator by the same number you divide the numerator by, as the fraction cannot contain decimals or remainders (it must be a whole number] e.g. 3/6 is NOT in its simplest form, as you can divide both numbers by 3, meaning that the simplest form would be 1/3 1/3 is in its simplest form, as although you could divide the denominator by 3, you cannot divide the numerator by 3 to equal a whole number.

i have know idea what it is i just need help!!!!!!!!!!!!!!!! SOMEONE PLEASE HELP ME!!!

When you can divide the Numerator and the Denominator by something other than 1 or itself

There is no common prime factor between the denominator and numerator, in other words, when their GCF is 1.

When the numerator and denominator are relatively prime.