9 1/2 : 1,9 - 4 1/5 (6 + 7 1/2 ): 15
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2,32 * 15/29 + 4/5 (1 7/15 + 1/3 )* 5

1) 9 1/2 : 1,9 - 4 1/5 * (6 + 7 1/2 ) : 15 = 19/2 : 19/10 - 21/5 * (13 1/2) : 15 = 19/2 * 10/19 - 21/5 * 27/2 * 1/15 = 5 - 189/50 = 250/50 - 198/50 = 61/50 = 1 11/50

2) 2,32 * 15/29 + 4/5 * (1 7/15 + 1/3 ) * 5 = 2 8/25 * 15/29 + 4/5 * (22/15 + 5/15) * 5 = 58/25 * 15/29 + 4/5 * 27/15 * 5 = 6/5 + 108/15 = 18/15 + 108/15 = 126/15 = 8 2/5