(- 4 / 13) + (- 4 / 17) + 4 / 13 + (- 13 / 17) process!

(- 4 / 13) + (- 4 / 17) + 4 / 13 + (- 13 / 17) process!

(- 4 / 13) + (- 4 / 17) + 4 / 13 + (- 13 / 17)
=(- 4 / 13) + (4 / 13) + (- 4 / 17) + (- 13 / 17)
=0-4/17-13/17
=-(4+13)/17
=-1

4.5 △ 5.4-2 of 1 × 0.7 =? 2 of 31-3 of 17 × 0 + 12 of 65 △ 6 of 13 =?

4.5 △ 5.4-1 / 2 × 0.7
=5/6-7/20
=29/60
31 / 2-17 / 3 × 0 + 65 / 12 △ 13 / 6
=15.5+2.5
=18

Four out of thirteen plus minus four out of seventeen plus four out of thirteen plus minus thirteen out of seventeen

-4 out of 13 + (- 4 out of 17) + 4 out of 13 + (- 13 out of 17)
=(- 4 / 13 + 4 / 13) - (4 / 17 + 13 / 17)
=0-1
=-1
Your adoption is the driving force of my answer!