but it was decided to use a half-fraction design, which requires 16 runs.

Summary of what a fraction is. Entry 3 - What do the numbers ... Level 1 - Are these fractions equivalent to half? Exercise in working out fractions from shaded parts of shapes.

Half is shaded orange and half is unshaded ... Use this to complete the fraction labels on the number line. The number line increases in fifths, so count in fifths. 1⁄5 , 2⁄5, 3⁄5, 4 ...