7/8=0,875
4/8=0,5
7/8>4/8
-5*(-1.2)*(-7)=
-5*=8.2
-5*8.2=-41
1716,19-516,19=1200
30:1200=30*1/1200=1/40
73,5-44,5=29
29:7=29/7=4 1/7
1/40+4 1/7=7/280+4 40/280=4 47/280
1)3 1/8- 2 2/3 +1/6=15/24
25/8-8/3=11/24 11/24+1/6=15/24
2)3 7/8-2 3/4+1/2=1 5/8
31/8-22/8=9/8 9/8+1/2=13/8=1 5/8
1)2 13/30-(1 1/10+1/5)=1 2/15
11/10+1/5=13/10 73/30-13/10=34/30=17/15=1 2/15
2)4 14/45-1 7/15-3/5=2 11/45
194/45-22/15=194/45-66/45 128/45-3/5=128/45-27/45=101/45=2 11/45