Fractions and triangles

This task is about working out the fraction of shapes that is shaded.

Question

4 pairs of triangle - 2 triangles shaded
 
a)  What fraction of the triangles above is shaded?

    • \(1 \over 2\)

    • \(1 \over 3\)

    • \(2 \over 6\)

    • \(1 \over 4\)

Question

4 pairs of triangle - 3 triangles shaded
 
b)  One more triangle was shaded. What fraction is shaded now?

    • \(3 \over 8\)

    • \(3 \over 4\)

    • \(3 \over 6\)

    • \(3 \over 3\)

Question

4 pairs of triangle - 4 triangles shaded
 
c)  Another triangle was shaded. What fraction is unshaded now?

    • \(1 \over 8\)

    • \(1 \over 3\)

    • \(1 \over 4\)

    • \(1 \over 2\)