Question

Хелп 3/8:2/3 4/7:4/9 11 2/5:3 4/5 16/17:8 12:6/8

Answer 1

3/8:2/3 = 3/8·3/2 = (3·3)/(8·2) = 9/16.

4/7:4/9 = (4·9)/(7·4) = 9/7 = 1 2/7.

11 2/5:3 4/5 = 57/5 : 19/5 = (57·5)/(5·19) = 3.

16/17:8 = 16/7 · 1/8 = 16/(7·8) = 2/7.

12:6/8 = (12·8)/6 = 2·8 = 16.

Answer 2

Sure, I'd be happy to help you with these mathematical expressions. Let's solve each one step by step:

1. 3/8 ÷ 2/3 To divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction: (3/8) ÷ (2/3) = (3/8) * (3/2) = (3 * 3) / (8 * 2) = 9/16

2. 4/7 ÷ 4/9 Similarly, to divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction: (4/7) ÷ (4/9) = (4/7) * (9/4) = (4 * 9) / (7 * 4) = 36/28 = 9/7

3. 11 2/5 ÷ 3 To deal with the mixed number, convert it to an improper fraction first: 11 2/5 = (11 * 5 + 2) / 5 = 57/5 Now, divide by 3: (57/5) ÷ 3 = (57/5) * (1/3) = 57/15 = 19/5

4. 4/5 ÷ 16/17 To divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction: (4/5) ÷ (16/17) = (4/5) * (17/16) = (4 * 17) / (5 * 16) = 68/80 = 17/20

5. 8 ÷ 12/6 To divide by a fraction, you can multiply by its reciprocal: 8 ÷ (12/6) = 8 * (6/12) = 48/12 = 4

Remember that division is the same as multiplying by the reciprocal. So dividing by a fraction is the same as multiplying by its reciprocal. For example, a ÷ b is the same as a * (1/b).

If you have any more math problems or need further assistance, feel free to ask!