Question

3/7+4/9+(-7/5)+(-2/7)​

Answer 1

Answer:

−0.8126984127

Step-by-step explanation:

first calculate the values of 3/7, 4/9, -7/5, -2/7

then add their values

Answer 2

Answer:

$\frac{3}{7} + \frac{4}{9} - \frac{7}{5} - \frac{2}{7} \\ \frac{135 + 140 - 441 - 90}{315} \\ = - \frac{66}{315} \\ = - \frac{22}{63}$