Question

The sum of two rational numbers is -1/3. If one of the numbers is ⅘, find the other number.

Answer 1

Answer:

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Answer 2

Given:

Sum of two rational numbers$\[ = - \frac{1}{3}\]$

Value of 1st number$=\[\frac{4}{5}\]$

Solution:

Assume that the other number is $x$.

Find the other number.

Sum of two Number$=$First number $+$ Second number

$\[ \Rightarrow - \frac{1}{3} = \frac{4}{5} + x\]$

$\[ \Rightarrow x = - \frac{4}{5} - \frac{1}{3}\]$

$\[ \Rightarrow x = \frac{{ - 4 \times 3 - 1 \times 5}}{{15}}\]$

$\[ \Rightarrow x = \frac{{ - 12 - 5}}{{15}}\]$

$\[ \Rightarrow x = - \frac{{17}}{{15}}\]$

Hence, the other number is $\[ \ - \frac{{17}}{{15}}\]$.