 # When Can You Not Simplify A Fraction?

You can simplify a fraction if the numerator (top number) and denominator (bottom number) can both be divided by the same number. Six twelfths can be simplified to one half, or 1 over 2 because both numbers are divisible by 6. 6 goes into 6 once and 6 goes into 12 twice.

## How do you know if you need to simplify a fraction?

A fraction is considered simplified if there are no common factors, other than 1 , in the numerator and denominator. If a fraction does have common factors in the numerator and denominator, we can reduce the fraction to its simplified form by removing the common factors.

## What three fractions are equivalent to 2 5?

Answer: The fractions equivalent to 2/5 are 4/10, 6/15, 8/20, etc.

### How do you cross multiply fractions?

Well, to cross multiply them, you multiply the numerator in the first fraction times the denominator in the second fraction, then you write that number down. Then you multiply the numerator of the second fraction times the number in the denominator of your first fraction, and you write that number down.

### How do you simplify unknown fractions?

To do this, look for fractions where the numerator (top number) and the denominator (bottom number) are both multiples of the same times table. This tells you their common factor, which you use to divide the top and bottom number, in order to simplify or cancel down the fraction as required.

### How do you cross simplify fractions with variables?

Factor the numerator and denominator. Cancel the common factor of x. Example: Reduce the algebraic fraction to lowest terms.

Reducing an algebraic fraction to lowest terms