А) -2/9-(-11/6) = -2/9 + 11/6 = (-4+99)/54 = 95/54Б) -0.4-1/8 = -0.4 - 0.125 = -0.525В) 1 2/3 - (-0.75) = 5/3 + 3/4 = (20+9)/12 = 29/12Г) 1 5/7 - (-45/14) -2 1/4 = 1 5/7 + 45/14 - 9/4 = 13/7 + 45/14 - 18/7 = (26+45-36)/14 = 35/14 = 5/2
А) -2/9-(-11/6) = -2/9 + 11/6 = (-4+99)/54 = 95/54
Б) -0.4-1/8 = -0.4 - 0.125 = -0.525
В) 1 2/3 - (-0.75) = 5/3 + 3/4 = (20+9)/12 = 29/12
Г) 1 5/7 - (-45/14) -2 1/4 = 1 5/7 + 45/14 - 9/4 = 13/7 + 45/14 - 18/7 = (26+45-36)/14 = 35/14 = 5/2