Question

2)(-4 1/5 ×2 1/7) ×1/18​

Answer 1

Ответ:

-1/2

Пошаговое объяснение:

(-4 1/5 * 2 1/7) * 1/18 = (-21/5 * 15/7) * 1/18 = (-315/35) * 1/18 = -315/630 = -1/2

Answer 2

Привет!

Ответ написала внизу!

Удачи!

Answer 3

To solve the expression:

(-4 1/5 × 2 1/7) × 1/18

First, let's convert the mixed numbers into improper fractions:

-4 1/5 = -4 - (1/5) = -21/5 2 1/7 = 2 + (1/7) = 15/7

Now, we can multiply the fractions:

(-21/5) × (15/7) × (1/18)

To multiply fractions, you simply multiply the numerators together and the denominators together:

(-21/5) × (15/7) × (1/18) = (-21 * 15 * 1) / (5 * 7 * 18)

Now, let's simplify the fraction by canceling common factors:

(-21 * 15 * 1) / (5 * 7 * 18) = (-315) / (5 * 7 * 18)

Now, calculate the denominator:

5 * 7 * 18 = 630

So, the simplified fraction is:

(-315) / 630

Now, let's simplify this fraction further by dividing both the numerator and denominator by their greatest common factor, which is 315:

(-315 ÷ 315) / (630 ÷ 315) = (-1) / (2)

So, the result of the expression is -1/2.