Question

oblicz ułamki na szybkooo!!

Answer 1

Odpowiedź:

Szczegółowe wyjaśnienie:

1.

1 7/12 + 1 5/6 - 1/2 : 2/3 = 1 i 7/12 + 1 i 10/12 - 1/2 * 3/2 = 2 i 17/12 - 3/4 = 2 i 17/12 - 9/12 = 2 i 8/12 = 2 i 2/3

2.

[8 - (-2 1/2)] / (1 4/5 : 14/15 - 2) = (8 + 2 i 1/2) : (9/5 * 15/14 - 2) = 10 i 1/2 : (135//70 - 140/70) = 21/2 : (-5/70) = 21/2 : (-70/5) = -1470/10 = -147

3.

(1 1/2 - 2,75) / (1 5/6 - 2 1/12) = (1 i 1/2 - 2 i 75/100) : (1 i 10/12 - 2 i 1/12) = (1 i 1/2 - 2 i 3/4) : (22/12 - 25/12) = (1 i 2/4 - 2 i 3/4) : (-3/12) = (6/4 - 11/4) : (-1/4) = -5/4 * (-4) = 20/4 = 5

4.

1,8 * (3,3 - 4 1/2 : 3 3/4) / (5,6 : 2 1/3 + 2,5) = 1,8 * (3,3 - 9/2 : 15/4) / (56/10 : 7/3 + 2 i 5/10) = 18/10 * (3,3 - 9/2 * 4/15) : (56/10 * 3/7 + 2 i 1/2) = 9/5 * (3,3 - 36/30) : (168/70 + 2 i 1/2) = 9/5 * (3,3 - 1,2) : (2 i 28/70 + 2 1/2) = 9/5 * [2,1 : (2 i 4/10 + 2 i 5/10)] = 9/5 * (2,1 : 4 i 9/10) = 9/5 * (2,1 / 4,9) = 9/5 * 21/49 = 9/5 * 3/7 = 27/35

5.

19/12 + 11/6 - 1/2 : 2/3 = 19/12 + 22/12 - 1/2 * 3/2 = 41/12 - 3/4 = 42/12 - 9/12 = 33/12 = 2 i 9/12 = 2 i 3/4