# 1. Find the LCD of 3/5 and 1/6.

a. 5
b. 6
c. 11
d. 30

2 Add the fractions and write your answer in lowest terms.

2/5 + 1/9

a. 1/15
b. 23/45
c. 3/14
d. 19/45

3. Subtract the fractions and write your answer in lowest terms.

4/5 - 3/8

a. 1/40
b. 1 7/40
c. 7/10
d. 17/40

4. If Sandy's cookie recipe calls for 1/3 cup of brown sugar and she increases it by 2/9 of a cup, how much brown sugar does she have?

a. 7/9 cup
b. 5/9 cup
c. 4/9 cup
d. 1/9 cup

5. Subtract the fractions and write your answer in lowest terms.

5/8 - 1/6

a. 30/48
b. 19/24
c. 6/8
d. 6/6

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1. The correct answers are
1.d 30
2.c 5/14
3.b. 5/9
4.d 8/15
5. a 1 1/2, 1 1/9

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2. D
C
B
D
A

So 5sosfan is correct!

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3. Lincoln B is incorrect the answers are and these are correct got a 100%
1.D/30
2.C/5/14
3.B/5/9 cup
4.D/8/15
5.A/1-2/9 , 1-1/9
This is only for connections students

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4. 5sosfan is right :)

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5. I HATE people who don't tell the truth

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6. Actually he's right

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7. 5sosfan is correct

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8. Lincoln Im in connexus

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9. I'll show you the first two.

1. Find the LCD of 3/5 and 1/6.

a. 5
b. 6
c. 11
d. 30

The LCD is the smallest number divisible by both denominators.
Let's look at the multiples of 6:
6, 12, 18, 24, 30. The only one of those numbers that's also divisible by 5 is 30.

2 Add the fractions and write your answer in lowest terms.

2/5 + 1/9

a. 1/15
b. 23/45
c. 3/14
d. 19/45

The least common denominator must be 45.
2/5 = 18/45
1/9 = 5/45

I'll be glad to check your work and answers for the other three problems.

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10. 5sosfan is tottallly correct thanks

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11. help any body

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12. LICOLN B IS WRONG, 5SOSFAN IS RIGHT, BELEIVE ME I GOT 100%.

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13. 3. 4/5 - 3/8
the LCD is 40, but you can't just subtract the numerators. "fifths" and "eighths" aren't the came kind of things. In order to make them both into "fortieths" you have to make the denominators equal to 40.

The key to this kind of pronblem is to remember that multiplying by 1 does not change anything. to make 5 into 40, you need to multiply by 8. But to avoid changing the value, you multiply by 8/8 which is just 1.

4/5 * 8/8 = 32/40
3/8 * 5/5 = 15/40

Now everything is expressed in "fortieths", so you can now just subtract. 32-15 = 17, so

4/5 - 3/8 = 32/40 - 15/40 = 17/40
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4. 1/3 + 2/9

1/3 * 3/3 = 3/9

3/9 + 2/9 = 5/9
5. 5/8 - 1/6

5/8 * 3/3 = 15/24
1/6 * 4/4 = 4/24

15/24 - 4/24 = 11/24
Hmmm. Not given
However, 5/8 + 1/6 = 19/24. Typo?

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14. LICOLN B IS WRONG, 5SOSFAN IS RIGHT, BELEIVE ME I GOT 100%. For ohio connections, its 100% correct believe me.

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15. I go to Connections! WHAT DO I DO!?!?!

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16. 1. 30
2. 5/14
3. 5/9 cup
4. 8/15
5. 1 2/9, 1 1/3
Ur welcome unit 3 lesson 3

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17. 1.Find the LCD of 3/5 and 1/6
2.What is the difference between 3/7 and 1/14
3.If sandy's cookie recipe calls for 1/3 cup of brown sugar and she increases it by 2/9 of a cup, how much brown sugar does she use
4.What value could be added to 2/15 to make the sum greater than 1/2
5.Which set of mixed numbers has a diffrence of less than one
answer:a.1 2/9, 1 1/9
if you go to connexus here you go:)

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18. D,C,B,D,A
100% connexus

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19. Unit 3 Rational Numbers Lesson 3 Adding and Subtracting Fractions✨

🌸1. Find the LCD of 3/5 and 1/6

🌺2. What is the difference between 3/7 and 1/14?

🌷3. If Sandy's cookie recipe calls for 1/3 cup of brown sugar and she increases it by 2/9 of a cup, how much brown sugar does she use?

🌼4. What value could be added to 2/15 to make the sum greater than 1/2?

🌹5. Which set of mixed numbers has a difference less than 1?
Answer: 1 2/9, 1 1/9✔

💗💋

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20. Lesson 3: Adding and subtracting Fractions unit 3 rational numbers

1: D (30)
2: B (23/45)
3: D (17/40)
4: B (5/9)
5: B (3 1/2)

I just took the test and this is the right answer.
I promise you that this is the right answer.

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