Решите: (3 2/3+1 3/4):(6 7/12-2 1/4)*0,8
(3 2/3+ 1 3/4):(6 7/12-2 1/4)*8=1 3 2/3+ 1 3/4=5 5/12 6 7/12 -2 1/4=4 1/3 5 5/12:4 1/3=1 1/4 1 1/4*0,8=1
3 2/3+1 3/4=3 8/12+1 9/12=4 17/12=5 5/12 6 7/12-2 1/4=6 7/12-2 3/12=4 4/12=4 1/3 5 5/12:4 1/3*4/5=65*3*4/(12*13*5)=1