Question

Need helpp MEdalls!!!

Answer 1

Okay, if you say so.

Answer 2

hang on imma draw my problem

Answer 3

Lol

Answer 4

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

Answer 5

I dont understad how to simplify these problems

Answer 6

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

Answer 7

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

Answer 8

-71/10

Answer 9

changed mixed numbers to improper fractions

Answer 10

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

Answer 11

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

Answer 12

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

Answer 13

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

Answer 14

you get the numerator that way over the same denominator

Answer 15

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

Answer 16

do same for second fraction to end up with improper fractions

Answer 17

so I have to find the common denominator before anythiing

Answer 18

i would get them to imporper fractions before common denominators

Answer 19

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

Answer 20

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

Answer 21

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

Answer 22

then the denominators should be 10 right

Answer 23

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

Answer 24

becomes 23/5

Answer 25

how did you get 23

Answer 26

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

Answer 27

that is new numerator

Answer 28

and denominator stays the same

Answer 29

oh okay so let me try again

Answer 30

23/5 - 5/2

Answer 31

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

Answer 32

yes thats right but dont forget the minus signs

Answer 33

okay the 23/5 would be negative right ?

Answer 34

yes

Answer 35

because 4(3/5) was negative

Answer 36

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

Answer 37

type in calculator and see you get the same number

Answer 38

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

Answer 39

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

Answer 40

yes

Answer 41

okay i got that

Answer 42

so were do i go from there

Answer 43

just subtract the numerators and get the solution

Answer 44

18/10

Answer 45

the denominator stays the same so -71/10

Answer 46

how did you get 71

Answer 47

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

Answer 48

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

Answer 49

I did'nt multipy anything

Answer 50

do u see how I got that

Answer 51

you cross multiplyed?

Answer 52

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

Answer 53

oh sorry I wrote that wrong ignore it

Answer 54

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

Answer 55

okay I see

Answer 56

so -71/10

Answer 57

do you get it?

Answer 58

yea

Answer 59

-71/10 right and that can be simplified

Answer 60

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

Answer 61

yes correct!

Answer 62

cool thanks man

Answer 63

no problem take care

Answer 64

you too

Answer 65

do you see what i mean