If you can calculate simply, you should calculate simply 9 / 10 × 5 + (1 / 2 + 4 / 5) × 5 87.5% - 3 / 4 × 5 / 6 + 25%

If you can calculate simply, you should calculate simply 9 / 10 × 5 + (1 / 2 + 4 / 5) × 5 87.5% - 3 / 4 × 5 / 6 + 25%

9 / 10 × 5 + (1 / 2 + 4 / 5) × 5 = 9 / 10 × 5 + 1 / 2 × 5 + 4 / 5 × 5
= 9 / 2 + 5 / 2 + 4
=7+4
=11
87.5% - 3 / 4 × 5 / 6 + 25%
= 5 / 8-5 / 8 + 25%
=25%