Question

Б) 2  1\5 * 3 г) 3   2\7 * 8е) 2  4\5 *9

Answer 1

2 1/5*3=6. 3/5
3. 2/7*8=24 16/7=26. 2/7
2 4/5*9=18 36/5=25 1/5

Answer 2

To solve the given multiplication problems, let's convert the mixed numbers into improper fractions first. Then we can multiply the fractions. Here are the solutions:

a) 2 1/5 * 3

First, convert 2 1/5 into an improper fraction: 2 * 5 + 1 = 10 + 1 = 11 11/5

Now multiply the fractions: 11/5 * 3 = (11 * 3) / (5 * 1) = 33/5

So, 2 1/5 * 3 = 33/5.

b) 3 2/7 * 8

Convert 3 2/7 into an improper fraction: 3 * 7 + 2 = 21 + 2 = 23 23/7

Multiply the fractions: 23/7 * 8 = (23 * 8) / (7 * 1) = 184/7

So, 3 2/7 * 8 = 184/7.

c) 2 4/5 * 9

Convert 2 4/5 into an improper fraction: 2 * 5 + 4 = 10 + 4 = 14 14/5

Multiply the fractions: 14/5 * 9 = (14 * 9) / (5 * 1) = 126/5

So, 2 4/5 * 9 = 126/5.

Therefore, the results are: a) 2 1/5 * 3 = 33/5 b) 3 2/7 * 8 = 184/7 c) 2 4/5 * 9 = 126/5