1. Calculation (simple) (5 / 12 + 3 / 8) * 8 / 15, 36 * (1 / 3-1 / 8) 8 / 35 * (1 / 4 + 1 / 3) (1 / 3-51) * 17

1. Calculation (simple) (5 / 12 + 3 / 8) * 8 / 15, 36 * (1 / 3-1 / 8) 8 / 35 * (1 / 4 + 1 / 3) (1 / 3-51) * 17

Calculation
(5 / 12 + 3 / 8) * 8 / 15
=19/24*8/15
=19/45
36 * (1 / 3-1 / 8)
=36*1/3-36*1/8
=12-4.5
=7.5
8 out of 35 * (1 out of 4 + 1 out of 3)
=8/35*7/12
=2/15
(1 / 3-51) * 17
=3*17-1/51*17
=51-1/3
=50 and 2 / 3