Question

evaluate 1/-2+3/5+3/-4-7/10​

Answer 1

Answer:

1/-2+3/5+3/-4-7/10

1/2+3/5-3/4-7/10

-10+12-15-14/20

=-27/20

Answer 2

Answer:

hey mate ... here is ur answer ...

-1.3

Step-by-step explanation:

$\frac{1}{ - 2} + \frac{3}{5} + \frac{3}{ - 4} - \frac{7}{10}$

$= \frac{1 \times 5 + 3 \times - 2}{ - 2 \times 5} + \frac{3 \times 10 - 7 \times - 4}{ - 4 \times 10}$

$= \frac{5 + - 6}{ - 10} + \frac{30 + 28}{ - 40}$

$= \frac{ - 1}{ - 10} + \frac{58}{ - 40}$

$= \frac{ - 1 \times - 40 + 58 \times - 10}{ - 10 \times - 40}$

$= \frac{40 + - 580}{ 400}$

$= \frac{ - 540}{400}$

$= - 1.3$

hope this will help uh ...

have a great day ahead ...