# math 131 freshman college

least common denominator

8/9-4/5

1. 👍 0
2. 👎 0
3. 👁 139
1. What do you think it is?

1. 👍 0
2. 👎 0
2. What can be evenly divided by both 9 and 5?

1. 👍 0
2. 👎 0
👩‍🏫
Ms. Sue
3. IS IT 3 OR 1

1. 👍 0
2. 👎 0
4. THE ANSWER I HAVE IS 40/45-36/45

1. 👍 0
2. 👎 0
5. No

1. 👍 0
2. 👎 0
6. I don't think so

1. 👍 0
2. 👎 0
7. Yes, Alexius is right!

40/45 - 36/45 = 4/45

1. 👍 0
2. 👎 0
👩‍🏫
Ms. Sue
8. Ms.Sue I get late responses for some reason He said 3 or 1 so I said no. I didn't see the revised response.

1. 👍 0
2. 👎 0
9. 4/5 is not 36/45. It is 32/45.

40 = 5*8, not 5*9

1. 👍 0
2. 👎 0
10. MARK WHAT DO YOU THINK THE ANSWER IS

1. 👍 0
2. 👎 0
11. Duh. what was I thinking?????

1. 👍 0
2. 👎 0
12. 40/45 - 36/45

1. 👍 0
2. 👎 0
13. 8/9-4/5
= 40/45 - 36/45
= 4/45

end of discussion, Ms Sue had that at the beginning .

1. 👍 0
2. 👎 0

## Similar Questions

1. ### math

what does it mean for a fraction to be in simplest form? A.the numerator and denominator share a common factor greater than 1. B.the numerator and denominator share a common factor lesser than 1. C.the numerator and denominator

2. ### algebra

Rewrite 13/25 and 11/20 so they have a common denominator.

3. ### Math

Find the least common denominator for the following fractions: 3/4, 19/20, 1/6, 3/5, 8/15

4. ### math

What is the correct first step when multiplying mixed numbers? A. Rewrite the mixed numbers as improper fractions. B. Eliminate common factors between the whole numbers. C. Find a common denominator. D. Cross multiply numerators

1. ### math

When the numerator and denominator have only 1 as a common factor

2. ### MATH

HOW DO I FIND THE LEAST COMMON DENOMINATOR

3. ### MATH!

Finding Common Demoninators in fractions. 1) 2 4 -- - --- x^2-16 x^2+x-12 2) x-3 x+3 ---- + ------ x^2+2x-8 x^2+7x+12 Can ANYONE help me with these. I cant figure out how to get the DEMONINATORS THE SAME!? Use brackets to write

Find the sum and express in simplest form. Show all work: x^2 2x-15 ----- *------ x^2-9 x^2-9 *I don't get this at alll.Plz help me. I assume you are trying to add, since the problem says "find the sum" and express in simplest

1. ### Math

How are common denominator and common multiple alike and different

2. ### math

what is the least common denominator of 1/2, 2/7x, and 5/x?

3. ### math

what is the least common denominator of 1/12 and 4/5? is it 5? 12? 30? 60?

4. ### Math

How do you find a common denominator?