daje najjjjjjjjjjjjjjj

Odpowiedź:
a)
0,55 : (- 1 4/5)= 55/100 : (- 9/5) = - 11/20 * 5/9 = - 11/4 * 1/9 = - 11/36
b)
(-0,30) * ( - 2 1/2) = 3/10 * 5/2 = 3/2 * 1/2 = 3/4
c)
- 2,125 + 1 1/8 = - 2 1/8 + 1 1/8 = - 1
d)
- 4,78 - 3 1/5 = - 4,78 - 3,2 = - 7, 98