Question

zadanie 1 .

(teraz z ułamkami ) :)

a) ( 2/7 - 1/3 ) - ( 2/3-5/7)

b) (13/17+2/15) - (17/15-21/17)

c) 3* (2/3-3/5) - 7 - 12 * ( 3/5- 2/3)

d) 42* (1/6-1/8) -5-6*(1/8-1/6)

e) 1/7* (1/4-1/5)-3 1/20 + 6/7 (0,3- 1/4 )

f) (-11/19) * (1/4-1/6)+ 13 1/12 - 8/19 (3 7/12 - 7/2 )

dam naj :P

Answer 1

a) 0

b) 1

c) -6

d) -3

e) -3

f) ~~ -1823

Answer 2

a) (2/7-1/3)-(2/3-5/7)=-1/23-(-1/27)=0

b)  (13/17+2/15)-17/15+21/17=1

c) 3*(2/3-3/5)-7-12*(3/5-2/3)= 2-9/5-7-(36/5-8)=-6

d)42*(1/6-1/8)-5-6*(1/8-1/6)=7-5,25-5-6/8+1=-3

e)1/27-1/35-61/20+9/35-3/14=-3

f) -11/228+13 11/228=13