Question

Oblicz : 3cale 1/4 - 8calych 5/6 = -2cale 1/4 + 7claych 1/3= - 3 cale 1/7 - 1,2 = 4cale 5/6 - 8,2 = POTRZEBUJE NA TERAZ !!!!

Answer 1

3 1/4 - 8 5/6 = 3 6/24 - 8 20/24 = - 5  7/12
2 1/4 + 7 1/3 = 2 3/12 + 7 4/12 = 9 7/12
- 3 1/7 - 1,2 =  -3 10/70 - 1 2/10 = -3 10/70 - 1 12/70 = -2 80/70 - 1 12/70 = - 3 92/70 = -4 12/70 = -4 6/35 
4 5/6 - 8,2 = 4 50/60 - 8 12/60 = -4 38/60 = -4 19/30
może będzie dobrze ;D