First, change it so that the two fractions have the same denominator (by changing the fractions into equivalent fractions). Once the two fractions have the same denominator, it is simply a case of subtracting the numerators, leaving the denominator the same. Finally, reduce the fraction to its lowest terms (if possible).
it means when two denominators can reduce fast
You should reduce a fraction if the numerator and denominator have any common factor greater than one.
You divide both the numerator and denominator by a common multiple.
Multiply the denominator by the whole number. Add the numerator to that total. Put that sum over the original denominator.
First, change it so that the two fractions have the same denominator (by changing the fractions into equivalent fractions). Once the two fractions have the same denominator, it is simply a case of subtracting the numerators, leaving the denominator the same. Finally, reduce the fraction to its lowest terms (if possible).
divide the denominator by the numerator
to reduce you you have to find the two numbers lowest common denominator. Then that is the number that is reduced over the number you got.
Multiply the denominator by the whole number, add the numerator, and put that total over the denominator.
Yes. when changing a mixed number to another form you leave the denominator constant and it does not change.
12
That's not really how that works...
it means when two denominators can reduce fast
You should reduce a fraction if the numerator and denominator have any common factor greater than one.
Finding the lowest common denominator
When you can no longer reduce the numerator and denominator by the same number.
You divide both the numerator and denominator by a common multiple.