Question

tính hợp lý:

8/11 x 14/23 + 8/11x9/23-8/11

Answer 1

\(\frac{8}{11}.\frac{14}{23}+\frac{8}{11}.\frac{9}{23}-\frac{8}{11}\)

\(=\frac{8}{11}.\left(\frac{14}{23}+\frac{9}{23}\right)-\frac{8}{11}\)

\(=\frac{8}{11}.1-\frac{8}{11}\)

\(=0\)

Answer 2

=8/11x(14/23+9/23)-8/11

=8/11x23/23-8/11

=8/11x1-8/11

=0