Обчисліть: 5/6-3/4; 9/14+8/21; 2.3/4-1.5/6; 7.5/12-[1.5/8+2.1/24] - вопрос №5634914821234156751215821244093571 от 4747384673838 29.04.2020 14:44

Question

Математика: Обчисліть: 5/6-3/4; 9/14+8/21; 2.3/4-1.5/6; 7.5/12-[1.5/8+2.1/24]

4747384673838 · Answer

5/6 - 3/4 = 10/12 - 9/12 = 1/129/14 + 8/21 = 27/42 + 16/42 = 43/42 = 1 1/422,3/4 - 1,5/6  = 6,9/12 -3,0/12 = 3,9/12=1,3/4 = 0,3257,5/12 - (1,5/8 + 2,1/24) = 7,5 /12 - (4,5/24 +2,1/24) =15/24 - 6,6/24 = 8,4/24 =0,35...