a) zamien liczby na ulamki zwykle (pamietaj o skracaniu) 0,5+2/3= 5/10 + 2/3 = 1/2 + 2/3 = 3/6 + 4/6 = 7/6 = 1 1/6 1,8-12/3= 18/10 - 4 = 1 4/5 - 4 = -2 1/5 2,5×22/7= 25/10 * 22/7 = 5/2 * 22/7 = 5 * 11/7 = 55/7 = 7 6/7 21/4÷0,3= 21/4 : 3/10 = 21/4 * 10/3 = 7/2 * 5 = 35/2 = 17 1/2 b) zamien liczby na ulamki dziesietne 4,25+13/4= 4,25 + 3,257,5 6,5-31/2= 6,5 - 15,5 = -9 3,6×3/5= 3,6 * 0,6 = 2,16 21/4÷0,3= 5,25 : 0,3 = 17,5
a) 0,5 + 2/3 = 5/10 + 2/3 = 1/2 + 2/3= 3/6 + 4/6= 7/6= 1 i 1/6 1,8 - 1 i 2/3 = 1 i 8/10 - 1 i 2/3= 1 i 4/5 - 1 i 2/3 = 1 i 12/15 - 1 i 10/15= 2/15 2,5 *2 i 2/7 =2 i 5/10 * 16/7=2 i 1/2 * 16/7 = 5/2 *16/7= 5/1 *8/7= 40/7= 5 i 5/7 2 i 1/4 : 0,3= 9/4 : 3/10 = 9/4 * 10/3= 3/2 * 5/1= 15/2= 7 i 1/2 b) 4,25 + 1 i 3/4 = 4,25 + 1 i 75/100 = 4,25 + 1,75 = 6 6,5 - 3 i 1/2 = 6,5 - 3 i 5/10 = 6,5 - 3,5= 3 3,6 * 3/5= 3,5 * 6/10 = 3,5 * 0,6 = 2,1 2 i 1/4 : 0,3= 2 i 25/100 : 0,3= 2,25 : 0,3 = 8,3333...= 8,(3)
