Operations on fractions

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).

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

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).

Tags

CCSS.5.NF.B.6

Front

What is the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for finding the area of a rectangle with fractional dimensions?

Back

Use the same formula: Area = length × width, ensuring to multiply the fractions correctly.

Tags

CCSS.5.NF.B.4B

Front

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

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator. For example, 2 1/2 = (2*2 + 1)/2 = 5/2.

Front

What is the area of a rectangle with length 2 cm and width 3 1/2 cm?

Back

The area is 7 cm².

Tags

CCSS.5.NF.B.4B

Front

If the base of a rectangle is 4/5 and the height is 3/7, what is the area?

Back

The area is 12/35.

Tags

CCSS.5.NF.B.4B

Front

How do you add fractions with different denominators?

Back

Find a common denominator, convert the fractions, and then add the numerators. For example, 1/4 + 1/3 = 3/12 + 4/12 = 7/12.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the process to find the missing side length of a rectangle if the area is known?

Back

Divide the area by the known side length. For example, if area = 24 cm² and length = 6 cm, then width = 24/6 = 4 cm.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.

Tags

CCSS.3.NF.A.3C