Question

-2/7:23 4/9:16 1 1/2:1/2 -4/7*3/4 -5/6*12

Answer 1

-2/7:23=-2/7*1/23=-2/161

4/9:16=4/9*1/16=1/36

1 1/2:1/2=3/2*2/1=3

-4/7*3/4=-3/7

-5/6*12=-5/6*12/1=-10

Answer 2

To evaluate the expressions, let's take them one by one:

1. -2/7:23 This expression represents the division of -2/7 by 23: -2/7 ÷ 23 = -2/161

2. 4/9:16 This expression represents the division of 4/9 by 16: 4/9 ÷ 16 = 4/144 = 1/36

3. 1 1/2:1/2 Here, 1 1/2 represents 1 + 1/2, and the expression is divided by 1/2: 1 + 1/2 ÷ 1/2 = 1 + 1 = 2

4. -4/7 * 3/4 This expression represents the multiplication of -4/7 by 3/4: (-4/7) * (3/4) = -12/28 = -6/14 = -3/7

5. -5/6 * 12 This expression represents the multiplication of -5/6 by 12: (-5/6) * 12 = -60/6 = -10

So, the results are:

1. -2/7:23 = -2/161
2. 4/9:16 = 1/36
3. 1 1/2:1/2 = 2
4. -4/7 * 3/4 = -3/7
5. -5/6 * 12 = -10