Question

Oblicz:

a) 2i 5/8 +1i3/4-1i1/2

b)1i 1/7*1i 3/4 c)1i 1/3 :12 d)2 i 5/6:3i 2/5*1i 1/5

Answer 1

a)  2 i  5/8 + 1 i 3/4 = 21/8+ 7/4 - 3/1 = 21/8 + 14/8 - 12/8 = 35/8 - 12/8 = 23/8 = 2 i 7/8 

 

b)  1i 1/7 * 1i 3/4 = 8/7 * 7/3 = 8/3 = 2 i 2/3

 

c)1 i 1/3 : 12 = 4/3 : 12/1 = 4/3 * 1/12 = 1/9   

 

 D)   2i 5/6 : 3i2/5 * 1 i 1/5 = 17/6 : 17/2 * 6/5 = 17/6 * 2/17 * 6/5 = 1/3 * 6/5 = 2/5 

Answer 2

2 5/8+1 3/4-1 1/2=2 5/8+1 6/8-1 4/8=2 7/8

 

1 1/7*1 3/4=8/7*7/4=56/28=2

 

1 1/3:12=4/3*1/12=4/36=1/9

 

2 5/6:3 2/5*1 1/5=17/6*5/17*6/5=85/102*6/5=510/510=1