Question

(15 / 1,2) × (7 / 1,4) – (1 / 2,5) × (3 / 1,2) = 61,5

Answer 1

= 12,5*5-0,4*2,5  =  62,5 - 1 = 61,5
наверное нужно было решение

Answer 2

Let's break down the given expression step by step:

(15 / 1.2) × (7 / 1.4) – (1 / 2.5) × (3 / 1.2)

First, let's simplify the fractions:

(15 / 1.2) = 12.5 (7 / 1.4) = 5 (1 / 2.5) = 0.4 (3 / 1.2) = 2.5

Now we can substitute these values back into the expression:

12.5 × 5 – 0.4 × 2.5

Next, let's perform the multiplications:

12.5 × 5 = 62.5 0.4 × 2.5 = 1

Now we can substitute these results back into the expression:

62.5 - 1

Finally, let's perform the subtraction:

62.5 - 1 = 61.5

Therefore, the result of the given expression is indeed 61.5.