MATEMATYKA KL 5 MATEMATYKA Z PLUSEM ZAD 1/99, TRESC NA ZDJECIU

Odpowiedź:
a) 1/4 : 1/5 = 1/4 × 5/1 = 5/4 = 1 1/4
b) 3/7 : 2/5 = 3/7 × 5/2 = 15/14 = 1 1/14
c) 2/3 : 5/6 = 2/3 × 6/5 = 4/5
d) 3/7 : 9/28 = 3/7 × 28/9 = 4/3 = 1 1/3
e) 1 1/2 : 2/3 = 3/2 × 3/2 = 9/4 = 2 1/4
f) 5 1/3 : 4/9 = 16/3 × 9/4 = 12
g) 7/8 : 1 5/16 = 7/8 × 16/21 = 2/6 = 1/3
h) 2/9 : 2 2/3 = 2/9 × 3/8 = 1/12
i) 3 1/3 : 1 1/3 = 10/3 × 3/4 = 5/2 = 2 1/2
j) 7 1/5 : 1 1/5 = 36/5 × 5/6 = 6
k) 2 3/4 : 4 2/5 = 11/4 × 5/22 = 5/8
l) 1 5/12 : 1 7/10 = 17/12 × 10/17 = 5/6