Neither. Factorise and then multiply a subset of factors.
No. If the denominators are the same, you subtract the numerators. If the denominators are different you have to find the least common denominator.
You first need to find a common denominator, not necessarily the least common denominator. Next, you rename the fractions according to the common denominator. Only then can you subtract the fractions. After subtraction you should simplify the answer.
To get the right answer when you add or subtract them.
The denominators need to be the same for subtraction. Find the Least Common Denominator for both items and then subtract.
Find a common denominator (make sure you multiply BOTH the numerator and the denominator) then subtract the numerators and simplify if necessary.
Yes.
Make them into improper fractions, find the least common denominator, convert them, subtract, reduce if possible.
To subtract dissimilar fractions, first find a common denominator for the fractions. This involves determining the least common multiple (LCM) of the denominators. Once you have the common denominator, convert each fraction to an equivalent fraction with that denominator. Finally, subtract the numerators of the adjusted fractions while keeping the common denominator, and simplify the result if possible.
To add or subtract fractions with uneven denominators, first find a common denominator, which is typically the least common multiple (LCM) of the denominators. Convert each fraction to an equivalent fraction with this common denominator by multiplying the numerator and denominator accordingly. Then, you can add or subtract the numerators while keeping the common denominator. Finally, simplify the resulting fraction if possible.
You have to find a common denominator, multiply them, subtract them and then simplify if you need to.
Before you can add or subtract fractions, the denominators must be the same. If the denominators are different, you need to find a common denominator by determining the least common multiple of the existing denominators. Once the denominators are equal, you can add or subtract the numerators while keeping the common denominator.
You need at least two numbers to find a common denominator.