1 11/12
Пошаговое объяснение:
11/15×(4 1/2-3 2/5÷17/20)+1 11/20 = 11/15 * ( 4 1/2 - 17/5 : 17/20) + 1 11/20 =
11/15 * ( 4 1/2 - 4) + 1 11/20 = 11/15 * 1/2 + 1 11/20 = 11/30 + 1 11/20 =
11/30 + 31/20 = 1 55/60 = 1 11/12
1 11/12
Пошаговое объяснение:
11/15×(4 1/2-3 2/5÷17/20)+1 11/20 = 11/15 * ( 4 1/2 - 17/5 : 17/20) + 1 11/20 =
11/15 * ( 4 1/2 - 4) + 1 11/20 = 11/15 * 1/2 + 1 11/20 = 11/30 + 1 11/20 =
11/30 + 31/20 = 1 55/60 = 1 11/12