What value divided by 15 equals 21?

In other words, what would the dividend be if the divisor were 15 and the quotient 21?

To find the answer, just multiply the divisor with the quotient: 15 × 21 = 315

To prove this, let's compute 315 divided by 15: 315 15 = 21

How does it work?

Asking which value divided by 15 gives a result of 21 is equivalent to solving the following equation:

x 15 = 21

  1. We need to isolate x, so multiply both sides by 15: 15 x 15 = 15 × 21
  2. 15 x 15 is equivalent to 15 15 x , which simplifies to 1 x (or just x ).
  3. Thus: x = 15 × 21 = 315

So, if the divisor is 15 and the quotient is 21, the dividend is 315.