Question

Oblicz ułamki: A) B) C) D) E) F)

Answer 1

A.
1 3/5 - 2 1/6 = 1 18/30 - 2 5/30 = 48/30 - 65/30 = -17/30
b.
3 3/8 + 2 5/6 = 3 9/24 + 2 20/24 = 5 29/24 = 6 5/24
c.
1/2 -(-1/6-1/3) = 1/2-(-1/6-2/6) = 1/2-(-3/6) = 1/2 + 3/6 = 1/2 +1/2 = 1
d.
7/6 + (-5/4-4/3) = 7/6 + (-15/12 - 16/12) = 7/6 + (-31/12) = 14/12 - 31/12 = -17/12 =
 -1 5/12
e.
-(-2 2/3)+7/15 = 2 10/15 + 7/15 = 2 17/15 = 3 2/15