Question

Виконайте множення 1) 5/6 • 3/25 2) 20/36 • 9/80 3) 6/• 5/18 4) 2/13 • 26 5) 2 2/3 • 3/8 6) 4/9 • 3/8 7) 8 3/4• 1 3/7 8) 2 2/15 • 1 9/16 9) 24/25 • 1 7/8 • 10/ 21

Answer 1

Ответ:

24

36

щкщалсььс

сюаюаддада

Answer 2

Sure! Let's solve each multiplication problem step by step:

1) 5/6 * 3/25

To multiply fractions, we multiply the numerators (top numbers) together and the denominators (bottom numbers) together. So, we have: (5 * 3) / (6 * 25) = 15 / 150

Simplifying the fraction, we get: 15 / 150 = 1 / 10

Therefore, the answer is 1/10.

2) 20/36 * 9/80

Similarly, we multiply the numerators and denominators: (20 * 9) / (36 * 80) = 180 / 2880

Simplifying the fraction, we get: 180 / 2880 = 1 / 16

So, the answer is 1/16.

3) 6/5 * 5/18

Again, multiplying the numerators and denominators: (6 * 5) / (5 * 18) = 30 / 90

Simplifying the fraction, we get: 30 / 90 = 1 / 3

Hence, the answer is 1/3.

4) 2/13 * 26

When multiplying a fraction with a whole number, we can treat the whole number as a fraction with a denominator of 1: (2/13) * (26/1) = (2 * 26) / (13 * 1) = 52 / 13

Simplifying the fraction, we get: 52 / 13 = 4

So, the answer is 4.

5) 2 2/3 * 3/8

First, we convert the mixed number to an improper fraction: 2 2/3 = (2 * 3 + 2) / 3 = 8/3

Now we can multiply the fractions: (8/3) * (3/8) = (8 * 3) / (3 * 8) = 24 / 24

Simplifying the fraction, we get: 24 / 24 = 1

Thus, the answer is 1.

6) 4/9 * 3/8

Multiplying the numerators and denominators: (4 * 3) / (9 * 8) = 12 / 72

Simplifying the fraction, we get: 12 / 72 = 1 / 6

Therefore, the answer is 1/6.

7) 8 3/4 * 1 3/7

Converting the mixed numbers to improper fractions: 8 3/4 = (8 * 4 + 3) / 4 = 35/4 1 3/7 = (1 * 7 + 3) / 7 = 10/7

Now we can multiply the fractions: (35/4) * (10/7) = (35 * 10) / (4 * 7) = 350 / 28

Simplifying the fraction, we get: 350 / 28 = 25 / 2

So, the answer is 25/2.

8) 2 2/15 * 1 9/16

Converting the mixed numbers to improper fractions: 2 2/15 = (2 * 15 + 2) / 15 = 32/15 1 9/16 = (1 * 16 + 9) / 16 = 25/16

Multiplying the fractions: (32/15) * (25/16) = (32 * 25) / (15 * 16) = 800 / 240

Simplifying the fraction, we get: 800 / 240 = 10 / 3

Hence, the answer is 10/3.

9) 24/25 * 1 7/8 * 10/21

Converting all mixed numbers to improper fractions: 24/25 = 24/25 1 7/8 = (1 * 8 + 7) / 8 = 15/8 10/21 = 10/21

Now we multiply all the fractions together: (24/25) * (15/8) * (10/21) = (24 * 15 * 10) / (25 * 8 * 21)

To simplify the calculation, we can first multiply the numerators and denominators separately: (24 * 15 * 10) = 3600 (25 * 8 * 21) = 4200

So, the answer is: 3600 / 4200

Simplifying the fraction, we get: 3600 / 4200 = 6 / 7

Thus, the answer is 6/7.