Chapter 9 Lessons 5-7

Chapter 9 Lessons 5-7

​

Vocabulary

• like fractions: fractions with the same denominator

• mixed number: a whole number and a proper fraction

• simplest form: the form a fraction is written in when the numerator and denominator have no common factor other than one

Multiple Choice

What is 3/12 in simplest form?

• Already in simplest form

• 6/24

• 1/4

• 1/3

Multiple Choice

What is 2/5 in simplest form?

• 1/2

• 2/5

• 3/4

• 4/10

Multiple Choice

What is 6/8 in simplest form?

• 1/2

• 3/4

• 8/6

• 1/4

Multiple Choice

What is 60/100 in simplest form?

• 7/8

• 3/5

• 6/10

• 2/4

Adding Mixed Numbers

• 1. Write each mixed number as an equivalent improper fraction

• 2. Add like fractions

• 3. Simplify

• OR

• Use the associate property to group the whole numbers with the whole numbers and the fractions with the fraction

• 3 ⅓ + 2 ⅔ = (3+2) + (⅓ + ⅔)

Multiple Choice

$$\frac{5}{3}+\frac{7}{3}=$$  

• $$\frac{3}{3}$$  

• $$\frac{12}{3}$$  

• $$\frac{5}{3}$$  

• $$\frac{3}{12}$$  

Multiple Choice

$$\frac{6}{8}+\frac{10}{8}=$$  

• $$\frac{8}{16}$$  

• $$\frac{26}{8}$$  

• $$\frac{16}{8}$$  

• $$\frac{11}{8}$$  

Multiple Choice

$$4\ \frac{1}{3}$$  +  $$2\ \frac{1}{3}$$  =

• $$6\ \frac{4}{6}$$  

• $$2$$  

• $$6\ \frac{2}{3}$$  

• $$7\ \frac{4}{3}$$  

Multiple Choice

$$3\ \frac{1}{8}\ +\ 6\ \frac{1}{8}=$$  

• $$9\ \frac{1}{8}$$  

• $$9\ \frac{2}{8}$$  

• $$9\ \frac{1}{4}$$  

• $$9\ \frac{2}{16}$$  

Multiple Choice

• 9 $$\frac{6}{7}$$  

• 9 $$\frac{6}{14}$$  

• 5

• 8 $$\frac{9}{7}$$  

Multiple Choice

Gideon ran  $$2\frac{4}{5}$$  miles last weekend.  This weekend he ran  $$3\frac{1}{5}$$  miles.  How many miles did he run in all?

• $$1\frac{3}{5}$$  miles

• $$5\frac{5}{10}$$  miles

• $$5\frac{3}{5}$$  miles

• 6 miles

Subtract Mixed Numbers

Multiple Choice

Write this mixed number as an improper fraction.

• $$\frac{37}{2}$$  

• $$\frac{52}{7}$$  

• $$\frac{7}{37}$$  

• $$\frac{37}{7}$$  

Multiple Choice

Write this mixed number as an improper fraction.

• $$\frac{5}{4}$$  

• $$\frac{4}{5}$$  

• $$\frac{11}{4}$$  

• $$\frac{4}{11}$$  

Multiple Choice

Write this mixed number as an improper fraction.

• $$\frac{5}{22}$$  

• $$\frac{12}{2}$$  

• $$\frac{4}{12}$$  

• $$\frac{12}{5}$$  

Convert from an improper fraction to a mixed number

1. Divide the numerator by the denominator

2. The quotient is your whole number

3. The remainder is your new numerator

4. The divisor is your denominator (the denominator stays the same)​

Multiple Choice

Convert this fraction into mixed number  $$\frac{8}{8}$$  

• $$2\frac{2}{8}$$  

• $$1\frac{1}{8}$$  

• 1

Multiple Choice

Convert this fraction into mixed number  $$\frac{18}{5}$$  

• $$5\frac{2}{18}$$  

• $$3\frac{3}{5}$$  

• $$4\ \frac{3}{5}$$  

Multiple Choice

Convert this fraction into mixed number $$\frac{7}{2}$$  

• $$3\frac{1}{2}$$  

• $$2\frac{3}{2}$$  

• $$3\frac{2}{2}$$  

Multiple Choice

Convert this fraction into mixed number  $$\frac{14}{5}$$  

• $$2\frac{2}{5}$$  

• $$1\frac{9}{5}$$  

• $$2\frac{4}{5}$$  

​Let's Put it all together and subtract mixed numbers!

Multiple Choice

5 ⁸/₁₀ - 1 ⁷/₁₀ =

• 3 ⁴/₅

• 3 ⁴/₁₀

• 4 ¹/₁₀

• 4 ¹⁴/₁₀

Multiple Choice

7 ⁵/₈ - 5 ³/₈ =

• 2 ¹/₄

• 1 ³/₄

• 1 ⁵/₈

• 2 ⁴/₈

Multiple Choice

4 ¹/₆ - 1 ³/₆ =

• 2 ⁵/₆

• 3 ²/₆

• 3 ⁴/₆

• 2 ²/₃

Multiple Choice

Mikayla bought $$12\frac{5}{8}$$  yards of fabric.  She used  $$6\frac{7}{8}$$  yards of the fabric for a costume.  How much fabric did Mikayla have left?

• $$5\frac{2}{8}$$  yards

• $$5\frac{6}{8}$$  yards

• $$6\frac{2}{8}$$  yards

• $$19\frac{4}{8}$$  yards