Multiplying Rational Numbers

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

What does 'of' mean in a mathematical context?

Back

In mathematics, 'of' typically means to multiply. For example, '3/8 of 24' means 3/8 multiplied by 24.

Tags

CCSS.5.NF.B.4A

Front

How do you multiply two fractions?

Back

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

Tags

CCSS.5.NF.B.6

Front

What is the product of -1/3 and 2/5?

Back

-2/15

Tags

CCSS.7.NS.A.2A

Front

What is the product of -3/8 and 4/5?

Back

-3/10

Tags

CCSS.7.NS.A.2A

Front

How do you interpret a negative rational number?

Back

A negative rational number indicates a value less than zero, often representing a loss or a decrease.

Tags

CCSS.7.EE.B.3

Front

What is the result of multiplying a positive and a negative rational number?

Back

The result is always negative. For example, 3/4 x -2/5 = -6/20 = -3/10.

Tags

CCSS.7.NS.A.2A

Front

What is the result of multiplying two negative rational numbers?

Back

The result is always positive. For example, -1/2 x -3/4 = 3/8.

Tags

CCSS.7.NS.A.2A

Front

How do you simplify the fraction 16/24?

Back

Divide both the numerator and the denominator by their greatest common divisor (GCD), which is 8. So, 16/24 simplifies to 2/3.

Front

What is the average change in shore at a beach if it changes by -3/4 feet each year for 7 years?

Back

-5 1/4 feet.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B