Please double check me. The last problem I couldn't figure out. Thanks

18. 13/18 + 11/18 = 24/18= 4/3
38. 9/11 – 3/11 + 7/11 = 13/11=2 1/11
44. 7/1 + 12/1 + 21/1= 40/1=40
50. 3/8 + 3/8 + 3/8 = 9/8 = 1 1/8
12, 20, and 35 = 7*5*3*2*2= 420
13/15 – 11/20 = 13/15- 13/75 – 11/100 – 11/20 =
1 1/15 + 3 3/10 – 2 4/5 = 46 57/60
Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be defective. About how many defective bottles should Julio allow before rejecting the entire line? 65

Lunch meat sells for about $3 per pound. You use about 1/2 pound per day for sandwiches. How much should you budget for lunchmeat over the next month (about 20 workdays)? $100.00

17 11/12 / 6 1/10 ( help please)

the first 4 questions are easy and you did ok

for 12, 20, and 35 = 7*5*3*2*2= 420 I don't see a question.
If you were finding a common denominator (highest common multiplier) then you were right. Except the equal sign after the 35 makes no sense, what is it equal to??

for the quality control question he samples 120 bottles per hour and anything over 1/50 to be defective is not acceptable.
1/50 of 120 is 2.4

So he should allow 2 defective bottles per hour but shut down the line after he finds 3 defective.

Your lunch question answer makes no sense.
You say he uses 1/2 pound per day, at $3 per pound would make $1.50 per day.
so for 20 days of work that would be 20(1.5) or $30

for your very last question you show no arithmetic operators, retype the question plese

The last question is dividing

17 11/12 / 6 1/10

Robin ran 5 1/3 mi on Sunday, 2 1/4mi on Tues, and 3 1/2mi on Fri. How far did she run during the week?
5 1/3 + 2 ¼ + 3 ½ = 64/12 + 27/12 + 42/12 = 133/12 = 1 11/12

The interest rate on an auto loan in May was 12 3/8%. By September the rate was up to 14 1/4%. How many percentage points did the interest rate increase over the period?
12 3/8 + 14 ¼ = 99/8 + 57/4 = 198/16 + 228/16 = 426/16 = 10 26/16

Are these correct?

Subtraction
13/15 – 11/20 = 13/15- 13/75 – 11/100 – 11/20

17. if you mean (11/12)÷(6 1/10) then

11/12 ÷ 61/10
= 11/12 * 10/61
= 55/366

Robin... is ok

for the interest problem why would you had the two rates.
To find the difference you have to subtract them
14 1/4% - 12 3/8%
= 57/4 - 99/8
= 114/8 - 99/8
= 15/8 or 1 7/8

so it increased by 1 7/8%

for the last:
13/15 – 11/20 common denominator is 60

= 52/60 - 33/60
= 19/60

I don't understand what you did.
you started with two fractions, then after the equal sign there are 4 of them. Did you type it properly??

. Estimate the following products or quotients.

17 11/12 ÷ 6 1/10

nxklw btfiq usexvnf unwxprgyh pltgi jaibzryqc yposajeiu

To solve the expression 17 11/12 ÷ 6 1/10, you can follow these steps:

Step 1: Convert the mixed numbers to improper fractions
17 11/12 can be converted to the fraction (17 * 12 + 11) / 12 = 215/12
6 1/10 can be converted to the fraction (6 * 10 + 1) / 10 = 61/10

Step 2: Divide the fractions
To divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction. In this case, you need to multiply 215/12 by the reciprocal of 61/10.
Reciprocal of 61/10 = 10/61

So, 215/12 ÷ 61/10 = (215/12) * (10/61)

Step 3: Simplify the fraction
To multiply fractions, multiply the numerators and multiply the denominators.
(215 * 10) / (12 * 61) = 2150/732

Step 4: Simplify the fraction, if possible
If you can simplify the fraction further, you should do so.
In this case, the greatest common divisor (GCD) of 2150 and 732 is 2. You can divide both the numerator and the denominator by 2.
2150/732 = (2 * 1075) / (2 * 366) = 1075/366

Therefore, 17 11/12 ÷ 6 1/10 = 1075/366.