Multiplying Rational Numbers (fractions and decimals)

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Tags

CCSS.5.NBT.A.2

Front

How do you multiply two fractions?

Back

To multiply two fractions, multiply the numerators together and multiply the denominators together. The result is a new fraction.

Tags

CCSS.5.NF.B.6

Front

What is the product of -1/2 and -4?

Back

The product is 2.

Tags

CCSS.7.NS.A.2A

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal as a fraction with a denominator of 1, then multiply the numerator and denominator by 10 for each digit after the decimal point.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is a positive number.

Tags

CCSS.7.NS.A.2A

Front

What is the first step in multiplying fractions?

Back

The first step is to multiply the numerators.

Tags

CCSS.5.NF.B.6

Front

What is the second step in multiplying fractions?

Back

The second step is to multiply the denominators.

Tags

CCSS.5.NF.B.6

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide the numerator and the denominator by their greatest common divisor (GCD).

Front

What is the product of 3/4 and 2/5?

Back

The product is 3/10.

Tags

CCSS.5.NF.B.6

Front

How do you multiply a fraction by a whole number?

Back

To multiply a fraction by a whole number, multiply the numerator of the fraction by the whole number and keep the denominator the same.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C