Oblicz: 4 i 1/2 x ( 3 i 3/8 + 1 i 5/8) =
2 i 3/7 x 6 - 1 i 1/2 x 4=



Odpowiedź :

4 i 1/2 * (3 i 3/8 + 1 i 5/8) = 9/2 * ((3+1)+(3/8 + 5/8)) = 9/2 * (4+1) = 9/2 * 5 = 45/2 (lub, 22 i 1/2 lub 22,5)

2 i 3/7 * 6 - 1 i 1/2 * 4 = 17/7 * 6 - 3/2 * 4 = 102/7 - 3 * 2 = 102/7 - 6 = 60/7 (lub 8 i 4/7)