Question

$(- \frac{2}{5}+ \frac{3}{7})- \frac{11}{4}$ 

Answer 1

(-14+15)-11
     35     4

1-11
35 4


4-385=381
140     140

Answer 2

(- 2/5 + 3/7) - 11/4
(- 56/140 + 60/140) - 385/140
(- 56 + 60) - 385
4 - 385
- 381