The mass of the two motors is 52 kg. One of them weighs 2.2 / 5 times the other. Find the mass of each motor.

Let’s denote the mass of the first monitor using the unknown x kg, and the mass of the second monitor – (2 2/5 * x) kg. According to the condition of the problem, we compose an equation and solve it:

x + 2 2/5 * x = 52.

Here are similar terms:

3 2/5 * x = 52.

Let us express the root of the equation, which is one of the factors, for this we divide the product by the second factor:

x = 52: 3 2/5,

x = 52: 17/5,

x = 52 * 5/17,

x = 260/17,

x = 15 5/17,

2 2/5 * x = 12/5 * 260/17,

2 2/5 * x = 624/17,

2 2/5 * x = 36 12/17.

Answer: the mass of the first monitor is 15 5/17 kg, and the mass of the second is 36 12/17 kg.