Question

Oblicz:
a) (3 5/7 - 2 11/27) : (3 4/7 - 2 1/2 )
b) ( 1 1/6 + 2 5/8 - 1/3) : 14/27

Answer 1

A) (3 5/7 - 2 11/27) : (3 4/7 - 2 1/2 ) = (3 135/189 - 2 77/189) : (3 8/14 - 2 7/14) = 1 58/189 : 1 1/14 = 247/189 : 15/14 = 247/189 * 14/15 = 3458/2835 = 1 623/2835 = 1 89/405 

b) ( 1 1/6 + 2 5/8 - 1/3) : 14/27 = (1 4/24 + 2 15/24 - 8/24): 14/27 = 3 11/24 * 27/14 = 83/24 * 27/14 = 83/8 * 9/14 = 747/112 = 6 75/112

Answer 2