-1 1/7 * (4/5 + 19/20) * (6 5/6 + 4 2/3)

Question

-1 1/7 * (4/5 + 19/20) * (6 5/6 + 4 2/3)

Answer 1

-1 1/7 * (4/5 + 19/20) * (6 5/6 + 4 2/3)= -8/7 *(16/20+19/20) *( 6 5/6 + 4 4/6) = -8/7 * 35/20 * 10 9/6 = -2 * 69/6 = -69/3 = -23

Comments

спасибо большое)))