Question

Wykanaj działania:

a) 61/3 - (2 1/2 +1 3/4 )

b)12 7/12 - (4 1/6 - 3 5/8 + 2 2/3)

c)2 7/16 + 3 5/12 - (4 5/6 + 1 1/3)

d)14 3/4 - (8 7/8 - (5 2/3 - 1 5/6))

Liczy sie nawet jedno działanie bo mi baba dała masakrycznie duzo zadań . Z góry dzięki

Answer 1

a) 61/3-(2 2/1 +1 3/4) = 61/3 - 5/2 + 7/4 = 183/12 - 30/12 - 21/12 = 174/12 = 29/2

b)12 7/12 - (4 1/6 - 3 5/8 + 2 2/3) = 12 14/24 - 4 4/24 + 3 15/24 - 2 16/24 = 9 9/24 = 9 3/8

c) c)2 7/16 + 3 5/12 - (4 5/6 + 1 1/3) = 2 21/48 + 3 20/38 - 4 40/48 + 1 16/48 = - 15/48 = - 5/16

d) d)14 3/4 - (8 7/8 - (5 2/3 - 1 5/6)) = 14 3/4 - 8 7/8 + 5 2/3 - 1 5/6  = 14 18/24 - 8 21/24 + 5 16/24 - 1 20/24 = 11 3/24 = 11 1/8