(2/3+7/8-5/6)×(1-5/17) по действиям

(2/3 + 7/8 - 5/6) * (1 - 5/17) = 1/2

1) 2/3 + 7/8 = 16/24 + 21/24 = 37/24
2) 37/24 - 5/6 = 37/24 - 20/24 = 17/24
3) 1 - 5/17 = 17/17 - 5/17 = 12/17
4) 17/24 * 12/17 = 12/24 = 1/2

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(2/3+7/8/6)×(1-5÷17)