Question

5. Oblicz:
a)
02号
1/2 + 2 = 1 + 2/2 =
3 1/2+2 3+1 =
=+三斤
b) 20-}=
18-2²/7 =
2-4 -5 1/3 =

Answer 1

Odpowiedź:

Szczegółowe wyjaśnienie:

Zad 5

a) Pierwsze masz dobrze

1 5/18 + 2 4/9 + 5/6 = 1 5/18 + 2 8/18 + 15/18 = 3 13/18 + 15/18 = 3 28/18 = 4 10/18 = 4 5/9

3 1/2 + 2 3/4 + 1 1/3 = 3 6/12 + 2 9/12 + 1 4/12 = 5 15/12 + 1 4/12 = 6 19/12 = 7 7/12

b)

2 1/20 - 3/4 = 2 1/20 - 15/20 = 41/20 - 15/20 = 26/20 = 1 6/20 = 1 3/10

1 7/18 - 2 2/9 = 1 7/18 - 2 4/18 = 25/18 - 40/18 = -15/18 = -5/6

2 1/7 - 5 2/3 = 2 3/21 - 5 14/21 = 45/21 - 119/21 = -74/21 = -3 11/21