Answer all the questions below and press submit to see how many you got right.
Denominator : The denominator of a fraction $\frac{a}{b}$ is the number $b$ below the fraction bar.
Fraction : A fraction is a number that can be written as $\frac{a}{b}$ with an integer $a$ and a natural numbers $b.$ A fraction $\frac{a}{b}$ is the result of the division $a\div b.$ Examples of fractions are $\frac{1}{2}, -\frac{2}{3}$ and $\frac{3}{2}.$
Multiplication : Multiplication is the mathematical operation that is a shorthand for adding the same amount several times. For example $3\cdot 4=4+4+4=12.$
Number : A number $x$ is a mathematical symbol representing a quantity.
Numerator : The numerator of a fraction $\frac{a}{b}$ is the number $a$ above the fraction bar.
Whole number : A whole number is any of the numbers $0,1,2,\ldots.$
$8\cdot \frac{4}{11}=\frac{?}{11}$
Third : A third either refers to the third object in an ordering or to the number $\frac{1}{3}=0.\overline{3}.$
$\frac{1}{3}\cdot \frac{3}{7}=\frac{3}{?}$
$\frac{7}{5}\cdot\frac{8}{2}=\frac{?}{10}$