Since there were two parts of the question, we looked at both before answering it to fully understand. When we didn't understand the first part of the question, we looked at the second question part to see if we could find a pattern, and we did. We joined the dots to make 9 congruent triangles shown from the picture (1 at the top, 3 in the middle and 5 at the bottom). We then coloured in the purple-shaded triangle to work out the fraction out of 9. We saw that there were six shaded halves of the triangles and converted that into three whole traingles. This was 3/9 of the triangle, simplified to 1/3.
After finding the solution to the second problem, we tried the same strategy for the first part of this problem and it worked. It was harder to find how the smaller triangles would fit, but we soon found that 9 right angled triangles fit into the big triangle (which is why the example that traced the 3 congruent triangles happened to be). We shaded the blue area and this time it was harder to measure the fraction, but we looked closer and found that it was 1/3 as well.
So both solutions to the equations are 1/3.