no, to add and subtract like and unlike fractions the denominator has to be the same,
When you want to add or subtract unlike fractions.
Convert unlike fractions to equivalent fractions with common denominators by finding the LCM of the denominators.
Same as for addition. Mainly, you have to convert the fractions to equivalent fractions that have the same denominator. After that, it is easy: just subtract the numerators and put the result on top of the common denominator.
convert at least one of them so that they have the same denominator, then proceed with the addition or subtraction
no, to add and subtract like and unlike fractions the denominator has to be the same,
Finding the LCM will make adding and subtracting fractions easier.
To add and subtract unlike fractions.
When you want to add or subtract unlike fractions.
because its just one of the rules of math :)
Convert unlike fractions to equivalent fractions with common denominators by finding the LCM of the denominators.
To get the right answer when you add or subtract unlike fractions.
Because to add fractions, the denominators must be equal.
-1/2+7/10
The question is based on a complete misunderstanding of what is required. Unlike denominators are NOT required!
It will help when you want to add and subtract unlike fractions.
The denominators need to be the same for subtraction. Find the Least Common Denominator for both items and then subtract.