Question

Oblicz.
a5/6 + 3/15
b5/6 + 2/3
c7/15 - 3/15 (Ten wynik w osobnym działaniu 2/3 + wynik = )
d16/12 - 3/4
e18/16 - 3/4

Błagam!!!!!!!!!!!!! prosze o pomoc

Answer 1

a5/6 + 3/15 = 25/30 + 6/30 = 31/30 = 1 i 1/30

b5/6 + 2/3 = 5/6 + 4/6 = 9/6 = 3/2 = 1 i 1/2

c7/15 - 3/15 = 4/15               2/3 + 4/15 = 10/15 + 4/15 = 14/14

d16/12 - 3/4 = 16/12 - 9/12 = 7/12

e18/16 - 3/4 = 18/16 - 12/16 = 6/16 = 3/8