( 1 7/8х - 3 7/12) * 4 4/5 = 0,8
(15/8х - 43/12) * 24/5 = 8/10
15/8х - 43/12 = 8/10 : 24/5
15/8х - 43/12 = 8/10 * 5/24
15/8х - 43/12 = 1/2 * 1/3
15/8х - 43/12 = 1/6
15/8х = 1/6 + 43/12
15/8х = 2/12 + 43/12
15/8х = 45/12
х = 45/12 : 15/8
х = 45/12 * 8/15
х = 3/3 * 2/1
х = 2
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( 1 7/8 * 2 - 3 7/12) * 4 4/5 = 0,8
(15/8 * 2 - 43/12) * 24/5 = 0,8
(15/4 - 43/12) * 24/5 = 0,8
(45/12 - 43/12) * 24/5 = 0,8
2/12 * 24/5 = 0,8
2/1 * 2/5 = 0,8
4/5 = 0,8
0,8 = 0,8
5 2/3 : 1/3 - 1 7/12 * 24/19 + (1 1/2) ³ : (1/4)² = 17/3 : 1/3 - 19/12 * 24/19 + (3/2 * 3/2 * 3/2) : (1/4 * 1/4) = 17/3 * 3/1 - 19/12 * 24/19 + 27/8 : 1/16 = 17 - 2 + 27/8 * 16/1 = 17 - 2 + 54 = 69