А)-1,6* (-1 7/8)=-1,6*(-1,875)=3
б)1 3/4- 2 1/3=1 9/12-2 4/12=1 5/12-2=5/12-1=-7/12
в)<span>-117,45/13,5-3,5*(-2,2)=-1174,5/135+3,5*2,2=-234,9/27+7,7=-8,7+7,7=-1
</span>г) 14,07/ 3,5+((3,36+3/8<span>-3,36-0,125) / 1/4</span><span> * 0,8-0,072)*(5,8+4 1/5</span><span>)=
</span>=4,02+((3/8-0,125) / 0,25 * 0,8-0,072)*(5,8+4,2<span>)=
</span>=4,02+((0,375-0,125) / 0,25 * 0,8-0,072)*10=4,02+(0,25/ 0,25 * 0,8-0,072)*10<span>=
</span>=4,02+(1 * 0,8-0,072)*10=4,02+(0,8-0,072)*10=4,02+0,728*10<span>=4,02+7,28=11,3</span>