NF.2 Adding & Subtracting Fractions in Word Problems

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (the number of parts) and 'b' is the denominator (the total number of equal parts).

Front

What does it mean to add fractions?

Back

Adding fractions involves combining the parts represented by the fractions. If the denominators are the same, add the numerators. If they are different, find a common denominator first.

Front

What does it mean to subtract fractions?

Back

Subtracting fractions involves taking away parts represented by one fraction from another. If the denominators are the same, subtract the numerators. If they are different, find a common denominator first.

Front

How do you find a common denominator?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators of the fractions you are working with.

Front

What is a mixed number?

Back

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

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator, such as 9/4.

Front

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

Back

To convert an improper fraction to a mixed number, divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator over the original denominator.

Front

What is the process to solve a word problem involving fractions?

Back

1. Read the problem carefully. 2. Identify the fractions involved. 3. Determine whether to add or subtract. 4. Find a common denominator if necessary. 5. Perform the operation and simplify if needed.

Front

If Avery has 8 and 3/4 pounds of bananas and sells 2 and 1/4 pounds, how many pounds does he have remaining?

Back

6 and 1/2 pounds.

Front

If the fourth graders at Raymond walked 2 and 1/6 miles and the Edgewood students walked 1 and 1/2 miles, how much further did Raymond students walk?

Back

2/3 mile.