9 0.28 0.16 1/3 9 0,28 0.16 1/3 11,25 0.35 5/12
х+378=5000+1572
х+378=6572
х=6572-378
х=6194
RiyyzhjgkkaifhGysxghxgxucycgyvjhestckg
1) -7 1/3+6 7/8:(-5 1/4)+4 21/40:1 9/20=-6 1013/1218
по действиям
1)6 7/8:(-5 1/4)=-6 7/8:5 1/4=-55/8:21/4=-55/8*4/21=
=-55/2*1/21=-55/21=-2 13/21
2)4 21/40:1 9/20=181/40:29/20=181/40*20/29=181/2*1/29=181/58=3 7/58
3)-7 1/3-2 13/21=-7 7/21-2 13/21=-9 20/21
4)-9 20/21+3 7/58=-9 1160/1218+3 147/1218=-6 1013/1218
2)- 6 1/7+5 3/4:11/14-(-3 3/4+1 5/6):1/6=
по действиям
1)-3 3/4+1 5/6=-3 9/12+1 10/12=-1 11/12=-23/12
2)-23/12:1/6=-23/12*6/1=-23/2=-11 1/2
3)5 3/4:11/14=23/4*14/11=23/2*7/11=161/22=7 7/22
4)- 6 1/7+7 7/22=- 6 22/154+7 49/154=1 27/154
<span>5)1 27/154-(-11 1/2)=1 27/154+11 1/2=1 27/154+11 77/154=12 104/154=
=12 52/77 </span>