What is the ratio 6/28 in simplest form?

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.