(12 1/3-7 3/4)*6/11=?
1) 12 1/2 - 7 3/4 = 12 2/4 - 7 3/4 = 11 6/4 - 7 3/4 = 4 3/4 2) 4 3/4 • 6/11 = 19/4•6/11 = 57/22 = 2 13/22
Спасибо большое