oblicz. wynik zapisz w najprostszej postaci ​

Oblicz Wynik Zapisz W Najprostszej Postaci class=

Odpowiedź :

a) 3 1/4 - 1 1/2 + 2 7/8 = 3 2/8 - 1 4/8 + 2 7/8 = 26/8 - 12/8 + 23/8 = 37/8 = 4 5/8

21 * 1 1/14 = 21 * 15/14 = 315/14 = 22 7/14 = 22 1/2

1 2/5 * 3 1/3 = 7/5 * 10/3 = 70/15 = 4 10/15 = 4 1/3

b) (3/4)^2 = 3^2/4^2 = 9/16

(1 1/2)^3 = (3/2)^3 = 3^3/2^3 = 27/8 = 3 3/8

5/6 : 2/9 = 5/6 * 9/2 = 45/12 = 3 11/12

c) 6 : 2 1/4 = 6/1 : 9/4 = 6/1 * 4/9 = 24/9 = 2 6/9 = 2 1/3

3 3/10 : 11 = 33/10 * 1/11 = 33/110

3 1/3 : 4 1/3 = 10/3 : 13/3 = 10/3 * 3/13 = 30/36 = 10/12 = 5/6