Question

Proszę o pomoc oblicz
1,3-(1/2-1/4)=
1,3-1/2-1/4=
51/5+1,3-(1/50+0,98)+100=

Answer 1

1,3-(1/2-1/4) = 1,3 - (2/4 - 1/4) = 1 3/10 - 1/4 = 1 6/20 - 5/20 = 1 1/20

1,3-1/2-1/4 = 1,3 - 0,5 - 0,25 = 0,8 - 0,25 = 0,55

5 1/5+1,3-(1/50+0,98)+100 = 5 1/5 + 1,3 - (2/100 + 98/100) + 100 =
= 5 1/5 + 1,3 - 1 + 100 = 5,2 + 1,3 - 1 + 100 = 6,5 - 1 + 100 = 5,5 + 100 = 105,5