Question

oblicz 2/9+(-8/9)= b)1/8+(-3/8)= c)3/4-(-3/4)= d)-1/2+(-1/3)= e)6 5/12-2 7/9

Answer 1

Odpowiedź:

a) 2/4 + (8/9) = 2/9 + 8/9 = 10/9 = 1 1/9

b) 1/8 + ( 3/8 ) = 1/8 =+ 3/8 = 4/8 = 2/4 = 1/2

c) 3/4 - (3/4) = 3/4 -3/4 = 0

d) 1/2 + ( 1/3) = 1/2 + 1/3= 3/6 + 2/6 = 5/6

e) 6 5/12 - 2 7/9 = 4 45/ 108 - 84/108 = 3 477/108 - 84/208 = 3 393/ 108 = 6 69/108

Nie wiem czy wszystko jest dobrze

Pozdrawiam :))