Answer
a. -7
b. $\frac{5}{6}$
c. -13
Work Step by Step
a.
-4+(-3)=-4-3=-7
b.
$\frac{1}{2}$-(-$\frac{1}{3}$)=
=$\frac{1}{2}$+$\frac{1}{3}$=
=$\frac{3}{6}$+$\frac{2}{6}$=$\frac{5}{6}$
c.
7-20=-13
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