a) 2*3/5+2/5 = 6/5 + 2/5 = 8/5 = 1 i 3/5
b) 1/7 * 8 + 4/7 = 8/7 + 4/7 = 12/7 = 1 i 5/7
c) 2/3 * 1/2 - 1/6 = 2/6 - 1/6 = 1/6
d) 4/5 : 1/2 + 3/5 = 4/5 * 2 + 3/5 = 8/5 + 3/5 = 11/5 = 2 i 1/5
e) 5/8 : 1/2 - 7/8 = 5/8 * 2 - 7/8 = 10/8 - 7/8 = 3/8
f) 11/8 + 18/8 - 21/8 = 29/8 - 21/8 = 8/8 = 1
g) (3/7 + 1/7) * 1/3 = 3/21 + 1/21 = 4/21
h) (4/3 * 1/2) : 2/3 = 4/3 * 3/2 + 1/2 * 3/2 = 2 + 3/4 = 8/4 + 3/4 = 11/4 = 2 i 3/4
