What value divided by 40 equals 21?

In other words, what would the dividend be if the divisor were 40 and the quotient 21?

To find the answer, just multiply the divisor with the quotient: 40 × 21 = 840

To prove this, let's compute 840 divided by 40: 840 40 = 21

How does it work?

Asking which value divided by 40 gives a result of 21 is equivalent to solving the following equation:

x 40 = 21

  1. We need to isolate x, so multiply both sides by 40: 40 x 40 = 40 × 21
  2. 40 x 40 is equivalent to 40 40 x , which simplifies to 1 x (or just x ).
  3. Thus: x = 40 × 21 = 840

So, if the divisor is 40 and the quotient is 21, the dividend is 840.