Answer:
15. 2/6 or 1/3
18. 3/6 or 1/2
21. 25/26
29.
a- 1/12
50/600
b- 22/100
132/600
Explanation:
The first ones are self explanatory lol.
to find the ones for 29, i just multiplied divided 12 by 600 and got 50 so that was my numerator and on the 2nd one i just multiplied 22 by 6 to get 132 because the denomenator is 600.