Question

Zad. 10 str.85
Oblicz:
a.) 3/5+1/3=..... d.)8/9-2/3=

b.)3/4-1/3=...... e.)1i 1/6+2 i 5/9=

c.)1/8+1/2= f.) 3 i 1/4-2 i 5/6=

Answer 1

Oblicz:
a.)
3/5+1/3= 9/15 + 5/15 = 14/15
b.)
3/4-1/3=.9/12 - 4/12 = 5/12.....
c.)
1/8+1/2= 1/8 + 4/8 = 5/8
d.)
8/9-2/3= 8/9 - 6/9 = 2/9
e.)
1i 1/6+2 i 5/9= 
= 1 1/6 + 2 5/9 = 1 3/18 + 2 10/18 = 3 13/18
f.)
3 i 1/4-2 i 5/6= 
= 3 1/4 - 2 5/6 = 3 3/12 - 2 10/12 = 2 15/12 - 2 10/12 = 5/12

Answer 2

A)9/15+5/15=14/15
b)9/12-4/12=5/12
c)1/8+4/8=5/8
d)8/9-6/9=2/9
e)1 3/18+2 10/18=3 13/18
f)3 6/24-2 20/24=10/24=5/12