Wiki User
∙ 13y agoOnly after simplification. If you subtract numbers with the same denominator, you have to put the original denominator in the result, but you can later simplify this, in some cases. A simple example:
3/4 - 1/4 = 2/4. Same denominator, but this can be simplified to 1/2.
Wiki User
∙ 13y agoNever. You could write a fraction as a mixed fraction if you like and then the mixed fraction would have a different denominator (e.g.: 23/2 = 11 1/2)
Change the whole number into an improper fraction with the same denominator as the fraction and then subtract accordingly
If the numerator and denominator are the same, the fraction simplifies to 1. And you should be able to subtract 1!
No. If the denominators are the same, you subtract the numerators. If the denominators are different you have to find the least common denominator.
Find a common denominator (make sure you multiply BOTH the numerator and the denominator) then subtract the numerators and simplify if necessary.
To get the right answer when you add or subtract them.
Never. You could write a fraction as a mixed fraction if you like and then the mixed fraction would have a different denominator (e.g.: 23/2 = 11 1/2)
Change the whole number into an improper fraction with the same denominator as the fraction and then subtract accordingly
If the numerator and denominator are the same, the fraction simplifies to 1. And you should be able to subtract 1!
Just simply add/subtract the numerators then copy the denominator.
First, turn the fraction into a improper fraction. Then find a common denominator between the two numbers. After this, subtract strait across, but leave the denominator the same.
No. If the denominators are the same, you subtract the numerators. If the denominators are different you have to find the least common denominator.
Find a common denominator (make sure you multiply BOTH the numerator and the denominator) then subtract the numerators and simplify if necessary.
The numerator of the answer is the result of subtracting the numerators of the fractions, and the denominator of the fraction is the same as the common denominator.
In order to add or subtract one fraction from another, they must have a common denominator, or the same denominator. That's because it's impossible to add two fractions that have a different number of parts.
The answer is 1/8.
By finding the lowest common denominator of the fractions.