5.NF.7 Study Guide

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

How do you divide a fraction by a whole number?

Back

To divide a fraction by a whole number, multiply the denominator of the fraction by the whole number. For example, 1/2 ÷ 3 = 1/(2*3) = 1/6.

Front

What does it mean to find a fraction of a quantity?

Back

Finding a fraction of a quantity means multiplying the quantity by the fraction. For example, to find 1/3 of 12, calculate 12 * 1/3 = 4.

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Front

How do you subtract fractions with different denominators?

Back

To subtract fractions with different denominators, first find a common denominator, convert the fractions, and then subtract the numerators. For example, 1/2 - 1/3 = 3/6 - 2/6 = 1/6.

Front

What is the weight of each piece of fudge if 1/2 pound is cut into 5 equal pieces?

Back

1/10 pound.

Front

If a factory uses 1/3 of a barrel of almonds for 3 batches, how much is used per batch?

Back

1/9 barrel.

Front

If Caleb has 5 packs of gum and gives 1/3 of a pack to each friend, how many friends can he give gum to?

Back

15 friends.

Front

How long is each piece if 1/3 yard of plastic pipe is divided into 2 equal pieces?

Back

1/6 yard.

Front

If Irene divides 1/2 gallon of fertilizer among 5 bottles, how much is in each bottle?

Back

1/10 gallon.