Multiplication and division of fractions

Multiplication and division of fractions

By: Sai Satwik Godena

Remember, to multiply a fraction:

• Multiply the numerator and the whole number

• write the product over the denominator

• simplify the fraction

Remember, to divide

• Keep the first fraction the same

• Change the division into a multiplication sign

• Flip the second fraction over to write the reciprocal

Multiple Choice

The side of an equilateral triangle is  $\frac{1}{2}\ cm$   .  Find it's perimeter

•  $1\ cm$  

•  $2\ cm$  

•  $\frac{3}{2\ }cm$  

• none of these

Multiple Choice

 $\frac{3}{5}of\ 25$  

• 1 cm

• 2 cm

•  $1\ \frac{1}{2}cm$  

•  $2\ \frac{1}{2}cm$  

Multiple Choice

 $what\ to\ be\ multiplied\ to\ \frac{4}{5}\ to\ get\ \frac{16}{35}$  

•  $\frac{4}{7}$  

•  $\frac{7}{4}$  

•  $\frac{16}{35}$  

•  $\frac{4}{5}$  

Multiple Choice

 $5\ \div\frac{5}{2}$  

• 1

• 2

• 5

• 3