-0.1+(-3.3) = -3.4
5.8 * 4.7 * (-1) = 27.26 * (-1) = - 27.26
- 2 1/7 : (-5/7) = -15/7 * (-7/5) = 15/5=3
5,8+0,5= 6,3
- 7/12 + 1,12 = -7/12 + 28/25 = -175/300 + 336/300= 161/300
- 1 17/36 * 27/106 = - 53/36 * 27/106= - (1*3)/(4*2)= - 3/8
-3 1/3 : (-4,3) = -10/3 : (-43/10) = -10/3 * (-10/43) = 100/129
5 7/8 + 2 1/4 = 47/8 + 9/4 = (47+18)/8 =65/8 = 8 1/8
-19/20 * (- 2 1/57) = -19/20 * (-115/57) = (1*23)/(4*3) = 23/12 = 1 11/12
-0,8+4,9 = 4,9-0,8=4,1
-6 3/4 * (-2,8) = -6,75 *(-2,8)= 18,9
423 - (-196) = 423+196=619
- 1 1/2 * 3/2 = -3/2 * 3/2 = -9/4 = - 2 1/4
3,08 - 5 12/25 = 3,08 - 5,48 =2,4