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8 votes
8 votes
-3.9 x 5 5/9 Im having trouble on this question plz help

User Yusha
by
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1 Answer

10 votes
10 votes

Its simple!

First, you turn -3.9 into a fraction

-3.9=


- 3 (9)/(10)

Now u solve


- 3 (9)/(10) * 5 (5)/(9) =

(1) Convert mixed numbers into fractions (im sure you know how to do this)


- (39 )/(10) * (50 )/(9) =

(2) Multiply across on both the denominator and numerator (bottom and top rows)


- (39)/(10) * (50)/(9) = - (1950)/(90)

(Remember, negative ×/÷ positive is always negative)

(3) Make ur answer into an even fraction


- (1950)/(90) = - (65)/(3) \\ = - 21 (2)/(3)

I hope this helped! Srry I'm not that good in english

User SimperT
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2.7k points