Question

Please answer the question.​

Answer 1

$\frac{ - 5}{4} + \frac{5}{4} = \frac{( - 5) + 5}{4} = \frac{0}{4} = 0$

$- 2 \times \frac{5}{6} + \frac{13}{ - 6} = \frac{ - 7}{6} + \frac{ - 13}{6} = \frac{ ( - 7) + ( - 13)}{6} = \frac{( - 7) - 13}{6} = \frac{ - 20}{6} = \frac{ - 10}{3}$

$\frac{ - 21}{3} + \frac{18}{3} = \frac{( - 21) + 18}{3} = \frac{ - 3}{3} = - 1$

Answer 2

Step-by-step explanation:

4

−5

+

4

5

=

4

(−5)+5

=

4

0

=0

- 2 \times \frac{5}{6} + \frac{13}{ - 6} = \frac{ - 7}{6} + \frac{ - 13}{6} = \frac{ ( - 7) + ( - 13)}{6} = \frac{( - 7) - 13}{6} = \frac{ - 20}{6} = \frac{ - 10}{3}−2×

6

5

+

−6

13

=

6

−7

+

6

−13

=

6

(−7)+(−13)

=

6

(−7)−13

=

6

−20

=

3

−10

\frac{ - 21}{3} + \frac{18}{3} = \frac{( - 21) + 18}{3} = \frac{ - 3}{3} = - 1

3

−21

+

3

18

=

3

(−21)+18

=

3

−3

=−1