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3/8 + (-4/5) + (-3/8 ) + 5/4
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5 votes
3/8 + (-4/5) + (-3/8 ) + 5/4

User Colibrow
by
8.4k points

1 Answer

2 votes
Rearrange:

(3)/(8)-
(3)/(8)+
(5)/(4)-
(4)/(5)
0+
(5)/(4)-
(4)/(5)
We need the same denominator in order to subtract

(5)/(4)×(
(5)/(5)) -
(4)/(5)×(
(4)/(4))

(25)/(20)-
(16)/(20)

(9)/(20)
Final Answer:
(9)/(20)
User Alexandr Shurigin
by
8.5k points
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