8/3-9/4+1/4=?
adding fractions ....
i suck with fractions lol
its easier to add add and subtract fractions when they are all speak the same ratio .... we gotta change the form of the fractions but still keep the value intact
8/3-(9/4-1/4)
in other words; we have to get them all sitting on the same number ... you already have 2 that are good to go; -9/4+1/4 = -8/4 = -2 right?
2/3
i mean 8/3-(-9/4-1/4)
that should change up the answer
both would change up to positive right
that leaves us with: 8/3 - 2 ; we can multiply any number we like by "1" and its value doesnt change; but it is a useful form of 1 that we need. 8/3 is already sitting on a number ... the 3 ; and 3/3 = 1 soo 2(1) = 2 2(3/3) = 6/3 8/3 - 6/3 = 2/3 .... you changed up the numbers put the process is the same
yes; if they were both negative; they will change to positive
so it would be 8/3-10/4
8/3 +9/4 +1/4 8/3 + 10/4 is were we are at
yes
dont I have to mutiply the denominators?
You first have to get them all to have a common denominator, which in this case is 12. So, you multiply the numerators by what it takes the denominators to get to the common denominator. In this case, you will multiply the ones with 3 by 4 and the ones with 4 by 3. This will get you (32/12)-(27/12)+(3/12) You then can add/subtract the numerators to combine them, which gets you 8/12. You can then reduce by dividing each number by a common factor, which is 4 in this case. This eaves you with a final answer of 2/3.
8/3+10/4 = some number(n) 8/3+10/4 = n ; lets clear fractions by multiplying by denominators 3(8/3 + 10/4) = 3n ; we multpily thru by 3 8 + 30/4 = 3n ; now lets multiply thru by 4 4(8) + 4(30/4) = 4(3n) 32 + 30 = 12n ; add the left parts 62 = 12n ; now devide out the 12 to find our "n" 62/12 = n ; and reduce n = 31/6 maybe
thank you
there are quicker methods; but the right answer doesnt care how you get there :)
are x,y like terms right?
since coefficient would be 1
x and y are variables and are best to consider them unlike terms
oh ok thank you\
its like asking if apples and steak are the same food group ...
1 apple and 1 steak dont add or subtract .....
lol thats a nice example
\[3(3y-8)+2(2y+7)\]
9y-24+4y+14
multiply thru the paranthesis and add the results 3y - 8 2y+7 3 2 ------ ------ 9y -24 4y +14 9y -24 + 4y +14 --------- 13y -10
thank you alot easier than what i was thinking
at my age, i try easier over complex :)
\[-\left| 64 \right|\]
lol i like complicated for some odd reason
an absolute value is a solid measurement regardless of direction. 64 feet to the right = 64 64 feet to the left = 64 64 feet to the north = 64 ... etc |64| = 64 , now apply the "-" part to it. -|64| = -64
now i know anything inside the bracket would have to be positive but if the minus sign is outside the bracket?
work inside the brackets first; then outside the brackets
and if the minus sign would have been inside the bracket?
then work the insides of the bracket; and strip of any signs that get attached to it ... becasue the sign tells us direction, of which the absolute value cares nothing about
absolute value of -64 = 64
thanks :) u been a great help
\(\color{green}{\text{youre welcome :)}}\)
if you have any more questions, feel free to post them to the left. I gotta step away for a bit
ok thanks for your time
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