5/6*9/15-5/12*4/15; 7/18*9/14+1/3*6/7; 9/20*2/3+5/14*7/25 ; 3 3/4*2/5-3 6/25*5/27; 2 2/5*5/6-3/4*1 2/3; 1 17/28*7/9+14/25*5/7.

Question

Математика: 5/6*9/15-5/12*4/15; 7/18*9/14+1/3*6/7; 9/20*2/3+5/14*7/25 ; 3 3/4*2/5-3 6/25*5/27; 2 2/5*5/6-3/4*1 2/3; 1 17/28*7/9+14/25*5/7.

oblasovsema · Answer

1) 1/45; 2) 1/2; 3) 23/125 4)-29/90 5) 21/12 6) 9/14...

5/69/15-5/124/15; 7/189/14+1/36/7; 9/202/3+5/147/25 ; 3 3/42/5-3 6/255/27; 2 2/55/6-3/41 2/3; 1 17/287/9+14/255/7.