Question

Oblicz:
PLISSS NA JUTRO

Answer 1

A) 5/7 * 14 = 5/7 * 14/1 (14 i 7 skracamy przez 7) = 5/1 * 7/1 = 35/1 = 35
b) 4/9 * 3/5 ( 9 i 3 skracamy przez 3) = 4/3 * 1/5 = 4/15
c) 2 i 1/8 * 1 i 1/7 = 17/8 * 8/7 = (8 i 8 skracamy przez 8) = 17/1 * 1/7 = 17/7 = 2 i 3/7
d) 3 i 2/3 * 5/11 = 11/3 * 5/11 = 1/3 * 5/1 = 5/3 = 1 i 2/5
e) 8/11 : 4 = 8/11 : 4/1 = 8/11 * 1/4 = 2/11 * 1 = 2/11
f) 4 i 2/3 : 7 = 14/3 :7/1 = 14/3 * 7/1 = 2/3
g) 4 i 1/2 : 1 i /18 = 9/2 : 9/8 = 9/2 * 8/9 = 4/1 = 4 

Sory ale H nie umiem ;p 
Liczę na naj ! :D