Simplify: (4 /5 + 6/ 25 ) X (8/ 9 + −8 /7 )

Neil B asked Feb 18, 2023

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Neil B asked Feb 18, 2023

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24 votes

Answer: -416/1575

Explanation:

$(4)/(5)=(20)/(25) \implies (4)/(5)+(6)/(25)=(26)/(25)\\$

$(8)/(9)=(56)/(63)\\\\-(8)/(7)=-(72)/(63)\\\\\implies (8)/(9)-(8)/(7)=-(16)/(63)$

(26)/(25) * -(16)/(63)=-(416)/(1575)

D Kramer answered Feb 22, 2023

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