Răspuns :
a) 1 - 2/3 = 1/3
b) 2 - 3/7 = 11/7
c) 3 - 4/5 = 11/5
d) 13 - 17/7 = (91-17)/7 = 74/7
e) 2/3 + 3/4 = (8+9)/12 = 17/12
17/12 - 1 = 5/12
f) 3,0(5) = 3 intregi 5/90 = 3 intregi 1/18 = 55/18
55/18 = 55/18
b) 2 - 3/7 = 11/7
c) 3 - 4/5 = 11/5
d) 13 - 17/7 = (91-17)/7 = 74/7
e) 2/3 + 3/4 = (8+9)/12 = 17/12
17/12 - 1 = 5/12
f) 3,0(5) = 3 intregi 5/90 = 3 intregi 1/18 = 55/18
55/18 = 55/18