Question

найдите неизвестный член пропорции 1,2:х=1 1/3:1 3/7​

Answer 1

Ответ:1 1/8

Пошаговое объяснение:(8-2 2/7×2 11/12)÷2 2/27=

=(8-16/7*35/12):2 2/27=

(8-20/3):2 2/27=

=(7 3/3-20/3):2 2/27=

=(6 9/3-20/3):2 2/27=

=(5 12/3-20/3) :2 2/27=

=(4 15/3-20/3) :2 2/27=

=(3 18/3-20/3) :2 2/27=

=(2 21/3-20/3) :2 2/27=

=2 1 /3*27/56=

=7/3*27/56=

=9/8=1 1/8

Удачи)