2.56 repeating as a mixed number is 64/25.
Hope this helps
-4=-1b-(1/3)b
-4=-(4/3)b
-4/-(4/3)=b
b=3
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(1/2)3+(5/3)2
3/6+10/6=13/6
-23/3=13/6a
(-23/3)/(13/6)=a
a=-46/13
Step-by-step explanation:
You can see the full detailed explanation in the attached files