1. ...........= - 1 4/7
1) -5 4/5 : 2 9/10= - 29/5 : 29/10= - 29/5 * 10/29= - 2
2) - 6 2/5 : 1 3/5= - 32/5 : 8/5= - 32/5 * 5/8= - 4
3) 3/7 - (-2)+(-4)=3/7+2 - 4= - 1 4/7
2. .............=1 1/14
1) 1/14 - 2/7=1/14 - 4/14= - 3/14
2) -3/14 :(-3)=3/14 * 1/3=1/14
3) 6 1/13 :(-6 1/13)= -1
3) 1/14 - (-1)=1/14+1=1 1/14