No! You can multiply fractions without common denominators. For example:
2/4 + 7/1
Multiply straight across.
The answer is then 14/4 or 3.5
You don't need a common denominator to divide fractions.
Yes. You need common denominators if you want to:Add fractionsSubtract fractionsCompare fractions ("which is larger?")You do not need common denominators to multiply or divide fractions. Thus, in the case of fractions, multiplication and division is actually easier than addition and subtraction.
No only when adding or subtracting fractions a common denominator is needed
No.
No, You only need a common denominator when adding or subtracting fractions.
You DO need a common denominator to add, subtract, or compare fractions. You DO NOT need a common denominator to multiply or divide fractions.
You don't need a common denominator to divide fractions.
Yes. You need common denominators if you want to:Add fractionsSubtract fractionsCompare fractions ("which is larger?")You do not need common denominators to multiply or divide fractions. Thus, in the case of fractions, multiplication and division is actually easier than addition and subtraction.
No only when adding or subtracting fractions a common denominator is needed
You need a common denominator for both.
No.
No.
No.
No.
No, You only need a common denominator when adding or subtracting fractions.
When you need to reduce fractions.
Yes.