Verified answer

bonjour

a)

1/2 - 1/6 = 3/6 - 1/6 = 2/6 = 1 /3

1/9 + 5/9  = 6 /9

1/3 x 6/9 = 6 /27 =  2/ 9

b

3 + 1/4 = 12/4 + 1/4 = 13/4

13/4 x 8/25 = 104/100 = 26/25

26/25 - 5 = 26/25 - 25/25   = 1/25