Lesson 9: Adding, Subtracting, & Multiplying Fractions

 $\frac{7}{8}\ +\ \frac{1}{8}$  

•  $\frac{7}{8}$  

•  $\frac{6}{8}$  

• 1

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{3}{4}\ \times\frac{1}{3}\ \times\frac{2}{5}$  

•  $\frac{2}{15}$  

•  $\frac{1}{10}$  

•  $\frac{1}{5}$  

Tags

CCSS.5.NF.B.6

 $\frac{5}{7}\ -\ \frac{1}{7}$  

•  $\frac{6}{7}$  

• 0

•  $\frac{4}{7}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{5}{9}\ +\ \frac{3}{9}$  

• 1

•  $\frac{8}{9}$  

•  $\frac{8}{18}$  

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{5}{6}\ -\frac{3}{6}$  

•  $\frac{1}{3}$  

•  $\frac{3}{6}$  

• 1

• 0

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

 $\frac{8}{9}\ \times\ \frac{2}{9}$  

•  $\frac{2}{3}$  

•  $\frac{16}{9}$  

•  $\frac{16}{81}$  

Tags

CCSS.5.NF.B.6

What is the reciprocal of 7?

What is the definition of a reciprocal?

• the inverse of a value or a number.

• the absolute value of a number to zero

• the opposite or negative of a number

• There are no reciprocals in mathematics.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B