Question

Find the common difference of the arithmetic sequence. 4, 3 2/3, 3 1/3, 3, .... The common difference is ?

Answer 1

The numbers of the seria are:

$4,3\cdot\frac{2}{3},3\cdot\frac{1}{3},3$

so to find the diference we made the rest of two numbers so:

$3\cdot\frac{2}{3}-4=-\frac{1}{3}$

So the difference is -1/3