Question

prosze o pomoc a) 12-2/7-7+13 3/7= b)-5,6+2,7-2.+0,3= c)-5 1/8+12 1/12-2 7/12+1/8= d)-0,5-3/4+1 1/2-0.25=

Answer 1

a) 12-2/7-7+13=6+5=11                    b)-5,6+2,7-2.+0,3=6+$+(+=4    c)-5 1/8+12 1/12-2  7/12+1/8= d)-0,5-3/4+1 1/2-0.25=6+$++*7$+#=7                                                                                       

Answer 2

a) 12-2/7-7+13 3/7=

11 i 5/7 -7+ 13 i 3/7=

4 i 5/7 + 13 3/7=

17 i 8/7=

18 i 1/7

 

b)-5,6+2,7-2.+0,3=

-5,6+3-2=

-2,6-2=

-4,6

 

 

c)-5 1/8+12 1/12-2 7/12+1/8=

- 5 i 1/8 + 1/8 + 12 i 1/12 - 2 i 7/12

-5+11 i 13/12- 2 i 7/12=

-5 -9 i 6/12=

-5-9 i 1/2=

-14 i 1/2

 

d)-0,5-3/4+1 1/2-0.25=

-0,5 - 0,75+ 1,5 -0,25=

1,5 -1,5= 0