Odpowiedź:
zad 2
d) 1 1/8 * 4/15 = 9/8 * 4/15 = 3/2 * 1/5 = 3/10
e) 2 3/5 : 5 = 13/5 * 1/5 = 13/25
f) 1 5/7 : 6 = 12/7 * 1/6 = 2/7 * 1 = 2/7
g) 6 1/2 : 3 1/4 = 13/2 : 13/4 = 13/2 * 4/13 = 1 * 2 = 2
h) 7 1/3 : 2 2/5 = 22/3 : 12/5 = 22/3 * 5/12 = 11/3 * 5/6 = 55/36
i) 2 * 13 * 4/8 = 2 * 13 * 1/2 = 13 * 1 = 13
k) 8 3/4 * 4/7 * 3 = 35/4 * 4/7 * 3 = 35 * 1/7 * 3 = 105/7 = 15
l) 4 * 15 * 9/12 = 4 * 15 * 3/4 = 15 * 3 = 45