ISEE Middle Level Quantitative Reasoning › How to multiply fractions
Multiply the following:
When multiplying fractions, we will multiply the numerators together, then multiply the denominators together. We do NOT have to find a common denominator. So,
When dealing with problems that involve fractions and whole numbers, first convert your whole number into a fraction. You can easily do this by putting the whole number over 1.
When multiplying, multiply the numerators by each other and the denominators by each other.
Always reduce a fraction when possible. In this case, the numerator and denominator of are both divisible by 4. So, it reduces to 9.
Simplify the following expression:
Simplify the following expression:
To multiply fractions, simply multiply across the top and bottom:
Now, we cannot simplify our answer, so our answer remains:
Multiply the following:
When multiplying fractions, we will multiply the numerators together, then we will multiply the denominators together. Note that we do NOT have to find a common denominator.
So,
Multiply the numerators then denominators:
Answer:
Solve the following:
To multiply equations, we will multiply the numerators together, then we will multiply the denominators together. So, we get
Multiply the following:
To multiply fractions, we will multiply the numerators together and the denominators together. We get
Multiply the following:
To multiply fractions, we will multiply the numerators together, then we will multiply the denominators together. Note that we do NOT need to find a common denominator.
So, in the problem
We will first write 18 as a fraction. We know that whole numbers can be written as a fraction over 1. So, we get
Now, before we multiply, we can simplify to make things easier. The 3 and the 18 can both be divided by 3. We get
Now, we can multiply straight across. We get
Multiply the following:
To multiply fractions, we will simply multiply the numerators together, then we will multiply the denominators together. Note that we do NOT need to find a common denominator. So,
Multiply the following:
To multiply fractions, we will multiply straight across. In other words, we will multiply the numerators together, then we will multiply the denominators together. So, we get