9.6×5.3÷4.
7 / 8 * 3 / 4 + 6 / 8 * 8 / 9 = simple calculation
7 / 8 * 3 / 4 + 6 / 8 * 9 / 8 = the simple calculation is wrong
3/4=6/8
6/64*(7+9)
Simple calculation; [1 / 6 + 2 / 3] / / 15 / 8 [process]
[1 / 6 + 2 / 3] / / 15 / 8
=5 / 6 / 15 / 8
=5 / 6 x 8 / 5
=4 out of 9
Simple calculation 11 / 15 - (1 / 6 + 8 / 15)
11/15-(1/6+8/15)
=11/15-8/15-1/6
=3/15-1/6
=1/30