3.25 × 0.8-0.8 4 / 7 / 5 2 / 7 × 29 / 7 + 2 / 3 26 25000 × 4.14% × 5

3.25 × 0.8-0.8 4 / 7 / 5 2 / 7 × 29 / 7 + 2 / 3 26 25000 × 4.14% × 5

3.25×0.8—0.8
=(3.25-1)×0.8
=2.25×0.8
=18
4 / 7 / 2 / 5 / 7 × 2
=4/7*5/2*7/2
=5
7 / 9 + 2 / 3 △ 26
=7 / 9 + 1 / 39
=94/117
25000×4.14%×5
=5175