Question

8/5 * 3/4 + 9/4 Решите пж

Answer 1

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Answer 2

1) 8/5 * 3/4 = 6/5 = 1 целая 1/5
2) 1 целая 1/5 + 9/4 = 1 целая 1/5 + 2 целых 1/4 = 1 цел. 4/20 + 2 цел. 5/20 = 3 цел. 9/20

Answer 3

To solve the expression, follow these steps:

Step 1: Perform the multiplication of the fractions. Step 2: Perform the addition of the fractions.

Let's proceed with the calculations:

Step 1: 8/5 * 3/4 To multiply fractions, you simply multiply the numerators together and the denominators together.

(8/5) * (3/4) = (8 * 3) / (5 * 4) = 24 / 20

Step 2: 24 / 20 + 9/4 Now, we need to add the fractions. To add fractions, you need to have a common denominator. In this case, the common denominator is 20. So, we need to convert both fractions to have a denominator of 20.

(24 / 20) + (9 / 4) To convert 24/20, we can simply multiply the numerator and denominator by 1 (since 20/20 = 1).

(24 / 20) + (9 / 4) = (24 / 20) + (9 * 5) / (4 * 5) = 24 / 20 + 45 / 20

Now, both fractions have the same denominator, so we can add their numerators together:

(24 + 45) / 20 = 69 / 20

Therefore, the result of the expression is 69/20.