Question

dawn has 5/6 yard of lace. She uses 4/5 of it for a dress and the rest for a jewel box. How much lace does she use for the jewel box.

Answer 1

5/6 x 4/5= 20/30 ----->2/3 Used for dress
5/6 -2/3= amount used for jewel box ---> 1/6 yard

Answer 2

$amount\ used\ for\ jewel\ box=all\ lace-\ lace\ used\ for\ dress\\\\\ amount\ used\ for\ jewel\ box=\frac{5}{6}-\frac{4}{5}=\frac{25}{30}-\frac{24}{30}=\frac{1}{30}\\\\ \frac{1}{30}\ of\ lace\ is\ for\ jewel\ box.$