а)
б) 0,75 - ( 0,125 + 3/4 ) = 0,75 - 0,125 - 0,75 = -0,125
в) ( 4/15 + 0,3 ) - ( 1 - 3/20 ) = ( 4/15 + 3/10 ) - ( 20/20 - 3/20 ) = ( 8/30 + 9/30 ) - 17/20 = 17/30 - 17/20 = 34/60 - 51/60 = -17/60 ≈ -0,283
а)
б) 0,75 - ( 0,125 + 3/4 ) = 0,75 - 0,125 - 0,75 = -0,125
в) ( 4/15 + 0,3 ) - ( 1 - 3/20 ) = ( 4/15 + 3/10 ) - ( 20/20 - 3/20 ) = ( 8/30 + 9/30 ) - 17/20 = 17/30 - 17/20 = 34/60 - 51/60 = -17/60 ≈ -0,283