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Just multiply straight through. Numerator times numerator and denominator times denominator.

a/b * c/d

= ac/bd

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Q: What happens when you multiply a fraction by a fraction?
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What happens when you multiply a fraction by 1?

When you multiply a fraction by 1, the value does not change. It is like this for any number.


What happens when you multiply both a numerator and a denominator of a fraction by 4?

You will get an equivalent fraction.


What happens if you multiply a fraction by one?

It stays the same.


What happens when you multiply a fraction by its reciprocal?

You end up with 1.


What happens when you multiply the numerator and denominator in a fraction by nine?

You get an equivalent fraction which is not in its reduced (or simplest) form.


What happens when you multiply both the numerator and denominator of a fraction by 4?

The value of the fraction remains unchanged


What happens when you multiply by a fraction greater than one?

Your number increases.


What happens when you multiply a fraction by minus one?

The numerator changes sign.


What happens to a number when you multiply it by a fraction?

Fraction refers to the amount to the right of the decimal point (amounts of less than 1), so if you multiply any (positive) number by a fraction its value will be reduced.


How do you multiply a fraction by a fraction by another fraction?

Multiply all the numerators together and then multiply all the denominators together


How to multiply a fraction to another fraction?

Multiply the numerators together and then multiply the denominators together.


What happens when you multiply both the numerator and the denominator of a fraction by 9?

Nothing, there is no change, since you are multiplying by 9/9 = 1.