Fractions

Answer all the questions below and press submit to see how many you got right.

id: 4489

$5\div 13 = \frac{?}{13}$

id: 4546

A pizza is cut into $20$ equal sized pieces of size $\frac{1}{x}.$ What is $x?$

id: 4567

What is the numerator in the fraction $\frac{4}{19}?$