Find the sum or differences through 9-10
9. 1/16 - 7/32
A. 13/32
B. 23/32
C. 3/4*****
My answer C
10. 1/2 - 1/14
A. 3/7
B. 2/7****
C. 4/7
My answer C
11. in a certain bag candies, 2/5 of the candies are grape flavored and 3/10 are lemon flavored. What fraction of the candies is either grape flavored or lemon flavored?
Again, BTW, Bob you are rude.
I need the answer too! Please?
I posted that at 1:14 BTW, don't know why that's wrong either!
To find the sum or difference of fractions, you need to have a common denominator. Let's solve the first question:
9. 1/16 - 7/32
To add or subtract fractions, you need a common denominator. In this case, the denominators are 16 and 32. Since 16 is equal to 2 times 8 and 32 is equal to 4 times 8, their least common multiple (LCM) is 32.
To make the fractions have a common denominator of 32, you need to find the equivalent fractions. For the first fraction, you multiply the numerator and denominator by 2:
1/16 * 2/2 = 2/32
Now that both fractions have a common denominator of 32, you can subtract them:
2/32 - 7/32 = (2 - 7)/32 = -5/32
So the answer is -5/32, which is not one of the provided options. Therefore, none of the options A, B, or C are correct.
For the second question:
10. 1/2 - 1/14
Similarly, you need to find a common denominator for these fractions. In this case, the denominators are 2 and 14. The LCM of 2 and 14 is 14.
To make the fractions have a common denominator of 14, you can multiply the first fraction by 7/7:
1/2 * 7/7 = 7/14
Now you can subtract the fractions:
7/14 - 1/14 = (7 - 1)/14 = 6/14
Simplifying this fraction, you divide both the numerator and denominator by their greatest common divisor (which is 2):
6/14 = 3/7
So the answer is 3/7, which is not one of the provided options. Therefore, none of the options A, B, or C are correct.
Now let's move on to the third question:
11. In a certain bag, candies, 2/5 of the candies are grape flavored, and 3/10 are lemon flavored.
To find the fraction of candies that are either grape flavored or lemon flavored, you need to add the fractions:
2/5 + 3/10
To add the fractions, you first need to find a common denominator. In this case, the denominators are 5 and 10. The LCM of 5 and 10 is 10.
To make the fractions have a common denominator of 10, you can multiply the first fraction by 2/2 (equivalent to multiplying by 1):
2/5 * 2/2 = 4/10
Now you can add the fractions:
4/10 + 3/10 = (4 + 3)/10 = 7/10
So the fraction of candies that are either grape flavored or lemon flavored is 7/10.
B
C
Do the wrest on your own sorry.