Acar travels 1/2 of the distance between two cities in 3/5 of an hour .at this rate what fraction of the distance between the two cities can the car travel in 1 hour

Remark
The easiest way to do this is to set up a proportion. But be careful how you do it.

Call the distance d
1/2 d / 3/5 hour = x * d / 1 hour
 
Divide both sides by d
1/2 // 3/5 = x / 1    Cross multiply
1/2 * 1 = 3/5 x       divide by 3/5


Invert the bottom fraction and multiply.
       
The answer is 5/6 of the distance will be covered in 1 hour.

She does not have enough because if you add 188 and 258 for the total yards of fabric needed it would be 376. Mia has less than that, she would need 64 more yards of fabric and to find this you subtract the 312 from 376=64