8 i 3/4 - 2 i 1/8 = 35/4 - 17/8 = 70/8 - 17/8 = 53/8 = 6 i 5/8 5/14 * 7/10 = 1/2 * 1/2 = 1/4 5/6 * 3/7 * 4/5 = 15/42 * 4/5 = 60/210 = 6/21 2 * 2 * 1/4 = 4 * 1/4 = 4/4 =1 1/3 * 3/5 * 5/8 = 3/15 * 5/8 = 15/120 = 3/24 = 1/8 4/5 * 20/7 * 7/4 = 80/35 * 7/4 = 20/5 * 1/1 = 20/5 = 4 4 * 25/8 * 3/10 = 100/8 = 300/80 = 30/8 = 3 i 6/8 (10/21 : 45/14)+ (39/16 : 3/32) = (10/21 * 14/45) + ( 39/16 * 32/3) = (2/3 * 2/9) + (13/1 * 2/1) = 4/27 + 26/1 = 4/27 + 26 = 26 i 4/27 = 26 i 1/8 7 i 1/2 : 1 i 7/8 = 15/2 : 15/8 = 15/2 * 8/15 = 1/1 * 4/1 = 4/1 = 4 40/1 : 2/5 = 40/1 * 5/2 = 200/2 = 100 16/25 : 8/1 = 16/25 * 1/8 = 2/25 * 1/1 = 2/25 3 i 5/7 : 3 i 1/4 = 26/7 : 13/4 = 26/7 * 4/13 = 2/7 * 4/1 = 8/7 = 1 i 1/7 1 i 1/2 : 2 i 1/4 = 3/2 : 7/4 = 3/2 * 4/7 = 12/14 = 6/7 To chyba wszystko. jakbym coś pogubiłam, albo coś było niejasne, to pisz na PW. Pozdrawiam!
