Quetzalcoatl.Tomasello said:
Cerberus.Eugene said:
Or it could have been written as the faction
48 * (9+3)
__
2
What gets people confused is they don't understand as the original intention isn't clear.
No because that would of been 48(9+3)÷2...
Now your just arguing just to argue. Swap out ÷ for / which is the same exact thing and you now have a clear numerator and denominator.
48÷2(9+3) = 48/2(9+3)
Numerator 48 / Denominator 2(9+3)
Not if the fraction is 48/2 which could very easily be legitimately argued.
The problem is its not clear if its (48/2)*((9+3)/1) or (48/(2(9+3)), exactly as galahd argued.
Ok look, I went and took a shower and thought about this. Simplest way I can make this. When changing from a fraction to a / or a ÷ sign you lose information. You can try to retain information by using appropriate parentheses, but especially in a case like this its impossible to know for sure what the original intent was. You can hem and haw and bluster that you know it, but its obviously a controversial enough problem that there is evidence that it isn't clear. If you still think you're right, good for you. Be careful of the calculator you are using during your next math test.
Alexander.Xgalahadx said:
If / was used it should have been written as (48/2)(9+3) or 48/(2(9+3)). 48/2(9+3) has the same notation flaws as 48÷2(9+3) giving you two answers.