Multiplication the same as addition

Number Theory Level 2

Multiplication never gives the same result as addition. Or does it?

If \(a\), \(b\), and \(c\) are non-negative integers, \(b\) and \(c\) are relatively prime, and \(a+\frac{b}{c}=a\times\frac{b}{c}\), then what is \(b-c\)?

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.