Odpowiedź:
1.
3 1/3 * 6 = ?
3 1/3 = (3*3+1)/3 = 10/3
10/3 * 6 = (10*6)/(3*1)
(10*6)/(3*1) = 60/3
60/3 = 20
2.
8 * 2 3/4 = ?
2 3/4 = (2*4+3)/4 = 11/4
8 * 11/4 = (8*11)/(1*4)
(8*11)/(1*4) = 88/4
88/4 = 22
3.
1 2/5 * 20 = ?
1 2/5 = (1*5+2)/5 = 7/5
7/5 * 20 = (7*20)/(5*1)
(7*20)/(5*1) = 140/5
140/5 = 28
4.
2 * 2 7/10 = ?
2 7/10 = (2*10+7)/10 = 27/10
2 * 27/10 = (2*27)/(1*10)
(2*27)/(1*10) = 54/10
54/10 = 27/5
27/5 = 5 2/5
Szczegółowe wyjaśnienie:
PROSZE LICZE NA NAJ
