Answer:
3/7, 7/15, 3/5, 12/15
Explanation:
You have to find the common denominator; which is 105
So the equations turn into
12/105 , 3/105, 7/105, 3/105
Then you divide the old denominator with the new denominator.
105/15= 7, 105/5=21, 105/7=15
You then multiply that number with the numerator so:
84/105, 63/105, 49/105, 45/105
Then order accordingly!