2.38*36.5+7.62*36.5 13 / 28 + 17 / 24 - (13 / 28 + 9 / 24) 5 / 7 * (2 / 3-3 / 7) / 1 / 3 7 / 9 [(1 / 4 + 5 / 6) * 4 / 13]

2.38*36.5+7.62*36.5 13 / 28 + 17 / 24 - (13 / 28 + 9 / 24) 5 / 7 * (2 / 3-3 / 7) / 1 / 3 7 / 9 [(1 / 4 + 5 / 6) * 4 / 13]

2.38*36.5+7.62*36.5
=(2.38+7.62)*36.5
=10*36.5
=365
13 / 28 + 17 / 24 - (13 / 28 + 9 / 24)
=13 of 28 + 17 of 24-13 of 28-9 of 24
=13 of 28-13 of 28 + 17 of 24-9 of 24
=8 out of 24 = 1 out of 3
5 / 7 * (2 / 3-3 / 7) / 1 / 3
=5 / 7 * (2 / 3-3 / 7) * 3
=5 out of 7 * (9 out of 21 * 3)
=45 out of 49
7/9/【(1/4+5/6)*4/13】
= 7/9/【(1/4*4/13+5/6*4/13】
=7/9/(1/13+10/39)
=7/9/1/3
=7/3