(152,3/4-148,3/8)*0,3:0,2

[(152 3/4 - 148 3/8) * 0,3] : 0,2 = 6 9/161) 152 3/4 - 148 3/8 = 152 6/8 - 148 3/8 = 4 3/82) 4 3/8 * 0,3 = 4 3/8 * 3/10 = 35/8 * 3/10 = 21/16 = 1 5/163) 1 5/15 : 0,2 = 21/16 : 2/10 = 21/16 * 10/2 = 105/16 = 6 9/16