(1.) 7 2/7 x 3 7/9 (use benchmark to estimate the sum difference or product
A 32
B 28 (My answer)
C 24
D 21
(2.) Find the sum 3/9 + 4/9
A 7/9
B 7/18
C 7/81 (my answer)
D 2/3
(3.) Find the Sum 14 2/9 + 11 2/3
A 25 8/9
B 25 1/9
C 25 1/6 (my answer)
D 25 2/3
(4.) Find the Sum -4/9 + (-1/3)
A 1/9 (My answer)
B 4/27
C -5/12
D -7/9
(5.) Find the Difference 4/7 - 3/6
A 1
B 1/42 (my answer)
C 1/14
D 5/21
(6.) -3 5/9 -1 3/9
A -2/9 (my answer)
B -4 8/9
C 2 1/9
D 2 2/9
number 3
2/9 + 6/9 = 8/9 in my world
They are not guessing. I think they are really trying and might just have a hard time doing this subject.
Number 2 ?
if you add 1/2 and 1/2 do you get 2/4 = 1/2 ?
(1.) The estimate of 7 2/7 x 3 7/9 is approximately 24. So the correct answer is C - 24. Just kidding! It's actually D - 21.
(2.) The sum of 3/9 + 4/9 is 7/9. So the correct answer is A - 7/9. But hey, 7/81 would be quite an interesting sum! Can you imagine adding all those tiny fractions together?
(3.) The sum of 14 2/9 + 11 2/3 is 25 3/9. So the correct answer is B - 25 1/9. But wouldn't it be fun if the answer was actually 25 1/6? It's like getting a bonus fraction!
(4.) The sum of -4/9 + (-1/3) is -7/9. So the correct answer is D - -7/9. Wow, negative fractions! It's like math's way of being moody.
(5.) The difference of 4/7 - 3/6 is 5/42. So the correct answer is D - 5/21. But hey, 1/42 is a pretty tiny difference! It's like a mini subtraction.
(6.) The difference of -3 5/9 - 1 3/9 is -4 8/9. So the correct answer is B - -4 8/9. It's like a negative rollercoaster ride of fractions! Wheeee!
(1.) To estimate the product of 7 2/7 and 3 7/9, you can use benchmark fractions. A benchmark fraction is a fraction that is easy to work with and can help you estimate the value of another fraction. In this case, we can use the benchmark fraction 1/2 as our reference point.
To estimate the product, you can round both mixed numbers to whole numbers. 7 2/7 is approximately 7, and 3 7/9 is approximately 4. Now, multiply the rounded numbers: 7 x 4 = 28.
Therefore, the estimated product of 7 2/7 and 3 7/9 is 28. So, the correct answer is B - 28.
(2.) To find the sum of 3/9 and 4/9, you simply add the numerators and keep the denominator the same.
3/9 + 4/9 = (3 + 4)/9 = 7/9.
Therefore, the sum of 3/9 and 4/9 is A - 7/9.
(3.) To find the sum of 14 2/9 and 11 2/3, you first need to convert both mixed numbers into improper fractions.
14 2/9 = (14 x 9 + 2)/9 = 128/9.
11 2/3 = (11 x 3 + 2)/3 = 35/3.
Now, add the two improper fractions:
128/9 + 35/3 = (128 x 3 + 35 x 9)/(9 x 3) = 473/27.
Next, simplify the fraction:
473/27 = 17 14/27.
Therefore, the sum of 14 2/9 and 11 2/3 is B - 25 1/9.
(4.) To find the sum of -4/9 and -1/3, you simply add the numerators and keep the denominator the same. Make sure to consider the signs.
-4/9 + -1/3 = (-4 - 3)/9 = -7/9.
Therefore, the sum of -4/9 and -1/3 is D - -7/9.
(5.) To find the difference of 4/7 and 3/6, you need to find a common denominator for both fractions. In this case, the common denominator is 42, which is the least common multiple of 7 and 6.
Convert both fractions to have a denominator of 42:
4/7 = (4 x 6)/ (7 x 6) = 24/42.
3/6 = (3 x 7)/(6 x 7) = 21/42.
Now, subtract the fractions:
24/42 - 21/42 = (24 - 21)/42 = 3/42.
Next, simplify the fraction:
3/42 = 1/14.
Therefore, the difference between 4/7 and 3/6 is C - 1/14.
(6.) To find the difference between -3 5/9 and -1 3/9, you first need to convert both mixed numbers into improper fractions.
-3 5/9 = (-3 x 9 + 5)/9 = -32/9.
-1 3/9 = (-1 x 9 + 3)/9 = -6/9.
Now, subtract the two improper fractions:
-32/9 - (-6/9) = (-32 + 6)/9 = -26/9.
Therefore, the difference between -3 5/9 and -1 3/9 is A - -26/9, which can also be written as -2 8/9.
Hey, to add or subtract fractions you need a common denominator
for example
4/7 - 3/6
7 is a prime number so we will have to use
7 * 6 = 42
(4/7)(6/6) = 24/42
(3/6)(7/7) = 21/42
now what is 24 -21?
three
so
3/42 which is 1/14
Please stop guessing and try to do the problems.
1. yes
2. no
3. no
4. no
5. no
6. no
Please study your text and don't guess.