These are always annoying cause the way its written is just invalid from a strict notation/algebra sense and thats why there are "2 answers". But maths arent up to interpretation and notations shouldnt either and you would never find something written like this in a math textbook or problem . You will find
6/(2(1+2)) =1 or (6/2)(1+2) or 6(1+2)/2
Mnemonic rules are useless when the notation isnt clear on whether the (1+2) is multiplied with the denominator or the numerator of 6/2 or worse yet if you use a division sign no one uses for even simple maths
as other commenters have said, it's ambiguous whether to multiply before dividing or vice versa. I multiplied first and tbh i forgot whether that is correct or not
These are always annoying cause the way its written is just invalid from a strict notation/algebra sense and thats why there are "2 answers". But maths arent up to interpretation and notations shouldnt either and you would never find something written like this in a math textbook or problem . You will find
6/(2(1+2)) =1 or (6/2)(1+2) or 6(1+2)/2
Mnemonic rules are useless when the notation isnt clear on whether the (1+2) is multiplied with the denominator or the numerator of 6/2 or worse yet if you use a division sign no one uses for even simple maths
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Isn't it 6/2(1+2)=9?
You calculate what's in the parentheses first
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Yeah I know.
1+2= 3
Then 6/2=3
Then 3×3=9
got you
as other commenters have said, it's ambiguous whether to multiply before dividing or vice versa. I multiplied first and tbh i forgot whether that is correct or not
:kitty-cri-screm: I've been got!
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hey i stumbled my way into being right, nice
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i did too before reading this thread, then I had doubts