Answer :
Addison used up 1/4 yard of ribbon out of 5/6 yard
5/6 - 1/4
12 is the LCM of 6 and 4
10/12 -3/12= 7/12
She is left with 7/12 yard of ribbon
5/6 - 1/4
12 is the LCM of 6 and 4
10/12 -3/12= 7/12
She is left with 7/12 yard of ribbon