1)19,6*2,5=49 2)2,065 - 1 5/12= 2 65/1000 - 1 5/12= 2 13/200 - 1 5/12= 2 39/600 - 1 250/600= = 389/600 3) 389/600 : 1/8= 389/600 * 8/1=389/75= 5 14/75 4)49 - 5 14/75= 44 14/75