Answer:
-1/2x -(5 23/42)y
Step-by-step explanation:
We assume you want to simplify the expression ...
(2 3/10)x -(5/7)y -(4 5/6)y -(2 4/5)x
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The mixed numbers and fractions are combined in the usual way. A common denominator needs to be found for the addition or subtraction to take place.
= x(2 3/10 -2 4/5) -y(5/7 +4 5/6)
= x(23/10 -28/10) -y(30/42 +4 35/42)
= x(-5/10) -y(4 65/42)
= -1/2x -(5 23/42)y
