Multiplying Fractions (Review)

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. For example, (a/b) * (c/d) = (a*c)/(b*d).

Front

What is 1/2 of 1/4?

Back

1/2 of 1/4 is 1/8. (1/2) * (1/4) = 1/8.

Front

If you have 3/4 of a pizza and eat 1/2 of it, how much pizza do you have left?

Back

You have 3/4 - 1/2 = 1/4 of the pizza left.

Front

What does it mean to simplify a fraction?

Back

Simplifying a fraction means reducing it to its lowest terms, where the numerator and denominator have no common factors other than 1.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator. For example, the reciprocal of 3/4 is 4/3.

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator. For example, 2 1/3 = (2*3 + 1)/3 = 7/3.

Front

What is 2/5 multiplied by 3/4?

Back

2/5 * 3/4 = 6/20, which simplifies to 3/10.

Front

If Tom rides his bike twice as far as Jerry, and Jerry rides 2 2/5 miles, how far does Tom ride?

Back

Tom rides 4 4/5 miles. (2 2/5) * 2 = 4 4/5.

Front

What is 1/3 of 21?

Back

1/3 of 21 is 7. (1/3) * 21 = 7.