Measure Fractions

Measure Fractions displays a mesh of unit squares that can be divided into different partitions both horizontally and vertically, and fill the mesh with colors to form different fractions.

The app measures the fraction that corresponds to each color, and adds everything that can be seen on the board on the line shown at the top.

At the right of the board there are two buttons.
One allows moving the colored rectangles of the fractions
The other allows to shrink vertically or horizontally the rectangles 

The app is useful for practicing addition, subtraction, division and multiplication of fractions.