Question

a 7/8 x 4/5-2/3x6/14
b 2 1/3x ( 1 3/4-7/8
c 3 1/5 x 1/2 - 5/7 x 1 2/5
d 1/5 x ( 3 3/7 - 2/7 x 5 1/2 )
pls potrzebuje na teraz

Answer 1

Odpowiedź:

7/8 * 4/5 - 2/3 * 6/14 = 7/10 - 2/7 = 49/70 - 20/49 = 29/70

1 i 1/3 * (1 i 3/4 - 7/8) = 1 i 1/3 * (1 i 6/8 - 7/8) = 1 i 1/3 * (14/8 - 7/8) = 1 i 1/3 * 7/8 = 4/3 * 7/8 = 7/6 = 1 i 1/6

3 i 1/5 * 1/2 - 5/7 * 1 i 2/5 = 16/5 * 1/2 - 5/7 * 7/5 = 8/5 - 1 = 8/5 - 5/5 = 3/5

1/5 * (3 i 3/7 - 2/7 * 5 i 1/2) = 1/5 * (3 i 3/7 - 2/7 * 11/2) = 1/5 * (3 i 3/7 - 11/7) = 1/5 * (2 i 10/7 - 11/7) = 1/5 * (1 i 17/7 - 11/7) = 1/5 * 1 i 6/7 = 1/5 * 13/7 = 13/35