A) 5/6×3/5= 1/2×1/1=1/2
2/9×6/7= 2/3×2/7=4/21
1 i 4/9×12= 13/9×12/1= 156/9 = 17 i 3/9
4 i 2/7 × 3 i 1/2 = 30/7 × 7/2= 15/1 × 1/1= 15/1= 15 (piętnaście całych)
B) (3/4)2 = 9/16
(3/7)2= 9/49
(2/3)3= 8/27
(2/5)2= 4/10
C) (1 i 1/4)2 = 5/4 × 5/4 = 25/16 = 1 i 9/16
(1 i 1/4)3 = 5/4 × 5/4 × 5/4 = 25/16 × 5/4 = 125/64 = 1 i 61/64
(1 i 2/3)3 = 5/3 × 5/3 × 5/3 = 125/27 = 4 i 17/27
(2 i 1/2)2= 5/2 × 5/2 = 25/4 = 6 i 1/4
Mam nadzieje że dobrze i przepraszam jak za późno :))
