Need helpp MEdalls!!!

- anonymous

Need helpp MEdalls!!!

- Stacey Warren - Expert brainly.com

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- schrodinger

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- anonymous

Okay, if you say so.

- anonymous

hang on imma draw my problem

- anonymous

Lol

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## More answers

- anonymous

\[-4\frac{ 3 }{ 5 }-2\frac{ 1 }{ 2 }\]

- anonymous

I dont understad how to simplify these problems

- anonymous

Id rather know how to do this problem then relie on a caculator

- anonymous

dude uve been typing for the past 20 minutes are you gonna help me?

- anonymous

-71/10

- anonymous

changed mixed numbers to improper fractions

- anonymous

so -(23/5)-(5/2)=-(46/10)-(25/10)=-71/10

- anonymous

but I have like 20 more of those to answer so I was hopeing somebody can show me the steps so I can copy the procedure on the other problems

- anonymous

ok multiply 5 by 4 and then add 3 for first fraction to get -23/5

- anonymous

the quickest way to think about it is to multiply the denominator by the whole number the add the numerator. the get common denominators before anyting else

- anonymous

you get the numerator that way over the same denominator

- anonymous

so like x(a/b) = (bx+a)/b

- anonymous

do same for second fraction to end up with improper fractions

- anonymous

so I have to find the common denominator before anythiing

- anonymous

i would get them to imporper fractions before common denominators

- anonymous

yes then find common denominator if it is not already there.

- anonymous

first. convert mixed number to improper fraction
second. get common denominator if needed
third. solve

- anonymous

okay so it should be 12/5 -2/2

- anonymous

then the denominators should be 10 right

- anonymous

no \[4 \frac{ 3 }{ 5 }\]

- anonymous

becomes 23/5

- anonymous

how did you get 23

- anonymous

because 5*4 is 20 and then add 3 to get 23

- anonymous

that is new numerator

- anonymous

and denominator stays the same

- anonymous

oh okay so let me try again

- anonymous

23/5 - 5/2

- anonymous

look at this http://www.mathplayground.com/fractions_mixed.html

- anonymous

yes thats right but dont forget the minus signs

- anonymous

okay the 23/5 would be negative right ?

- anonymous

yes

- anonymous

because 4(3/5) was negative

- anonymous

the number is the same just converted to make it easier to do computations

- anonymous

type in calculator and see you get the same number

- anonymous

-(23/5) -5/2 and the common denominator would be ten right

- anonymous

also 5 goes into 23 4 times plus some remainder which is the fraction

- anonymous

yes

- anonymous

okay i got that

- anonymous

so were do i go from there

- anonymous

just subtract the numerators and get the solution

- anonymous

18/10

- anonymous

the denominator stays the same so -71/10

- anonymous

how did you get 71

- anonymous

when you multiplied to get common denominator what did you get?

- anonymous

-46/10-25/10=-71/10

- anonymous

I did'nt multipy anything

- anonymous

do u see how I got that

- anonymous

you cross multiplyed?

- anonymous

multiply top and bottom for -23/5 by 10 and then multiply top and bottom of 25/10 by 2 to get 46/10 and 25/10

- anonymous

oh sorry I wrote that wrong ignore it

- anonymous

so -23/5 by 2/2 and -5/2 by 5/5

- anonymous

okay I see

- anonymous

so -71/10

- anonymous

do you get it?

- anonymous

yea

- anonymous

-71/10 right and that can be simplified

- anonymous

take a look at this http://www.mathsisfun.com/numbers/common-denominator.html

- anonymous

yes correct!

- anonymous

cool thanks man

- anonymous

no problem take care

- anonymous

you too

- anonymous

do you see what i mean

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