Question

Error Analysis Aaron says that the sum of -\frac{9}{16} and \frac{3}{16} is \frac{3}{4}. Without performing the addition, how can you tell that Aaron'

Factors and multiples
ANSWERED
asked 2021-06-13

Error Analysis Aaron says that the sum of \(\displaystyle-{\frac{{{9}}}{{{16}}}}\) and \(\displaystyle{\frac{{{3}}}{{{16}}}}\) is \(\displaystyle{\frac{{{3}}}{{{4}}}}\). Without performing the addition, how can you tell that Aaron's answer is incorrect?

Answers (1)

2021-06-14

The absolute value of \(\displaystyle-{\frac{{{9}}}{{{16}}}}{i}{s}\ {g}{r}{e}{a}{t}{e}{r}\ {t}{h}{a}{n}\ {t}{h}{e}\ {\left|{o}\right|}{l}{u}{t}{e}\ {v}{a}{l}{u}{e}\ {o}{f}-{\frac{{{3}}}{{{16}}}}\), so their sum must be negative.
Since \(-\frac{3}{4}\) is a positive number, it is not the correct solution.

0
 
Best answer

expert advice

Need a better answer?
...