Question

Oblicz
2 2/3-5,1-3,1=
-13 3/4+9,27+3,02=
-7 3/5-6 1/2+5,4=

Answer 1

2 i 2/3-5,1-3,1=8/3-51/10-31/10=80/30-153/30-93/30=

=80/30-246/30=-166/30=-83/15

-13 i 3/4+9,27+3,02=-55/4+9,27+3,02=-13,75+9,27+3,02=-1,46

-7 i 3/5-6 i 1/2+5,4=-38/5-13/2+5,4=-7,6-6,5+5,4=-14,1+5,4=-8,7