Jenny will use 28 blue beads and 21 red beads to make identical bracelets. What is the greatest number of bracelets she can make?
She can make 4 bracelets out of the 28 blue beads, each consisiting of 7 beads. And
she can make 3 bracelets out of the 21 red beats, each consisting of 7 beads.
So the total bracelets will be:
4+3=7
How many total beads does she have. Unsolvable without that key part