Question

If the links in a 30-inch necklace each measure three-eights of an inch long, how many links would be in then necklace?

Answer 1

80 links

Step-by-step explanation

To find how many links would be in the necklace, we have to divide the total length of the necklace, 30 inches, by the length of each link, 3/8 inch,

`30/(3)/(8)`

Use the KCF method:

• K,eep the first fraction

,

• C,hange the division sign into a multiplication sign

,

• F,lip the second fraction,

`30/(3)/(8)=30*(8)/(3)`

30 and 3 can be simplified - 30 is 3 times 10,

`30*(8)/(3)=10*8=80`

Hence, the necklace would have 80 links.