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for numbers 6a-6d, tell which expressions require you to rename mixed numbers before you can subtract.Find each difference. Write each expression and the difference in the correct box.

for numbers 6a6d tell which expressions require you to rename mixed numbers before you can subtractFind each difference Write each expression and the difference class=

Respuesta :

-  A) 5 2/5-2 1/4 common denominator 20/

8//20-5/20=3 3/20 no renaming needed

B)  5-2 7/8 renaming needed

4 8/8- 2 7/8= 40/8-7/8

2 1/8

C) 7 2/3-6 1/8= common denominator 24

16/24-3/24=1 13/24 no renaming needed

D) 9 1/6-5 2/3= renaming needed

8 7/6-5 2/3 common denominator of 6

7/6--4/6=3 1/2

abidemiokin

Answer:

Requires renaming

5 - 2 7/8 = 2 1/8

7 2/3 - 6 1/8 = 5 5/8

9 1/6 - 5 2/3 = 3 1/2

Does not require renaming

5 2/5 - 2 1/4 = 3 3/20

Step-by-step explanation:

6a) Given the expression

5 2/5 - 2 1/4

We do not need to rename both mixed fraction before subtracting.

The expression can be rewritten as:

(5-2)+(2/5-1/4)

3 + (2/5-1/4)

Solving 2/5-1/4 = 8-5/20

= 3/20

5 2/5 - 2 1/4 = 3 + 3/20

5 2/5 - 2 1/4 = 3 3/20

b) 5 - 2 7/8

We need to rename the mixed fraction 2 7/8 before subtracting

5 - 23/8

Taking their LCM

= 40-23/8

= 17/8

= 2 1/8

c) 7 2/3 - 6 1/8

We need to rename both mixed fraction before subtracting.

The expression can be rewritten as:

23/3 - 49/8

= 184-49/24

= 135/24

= 45/8

= 5 5/8

d) 9 1/6 - 5 2/3

We need to rename both mixed fraction before subtracting. The expression can be rewritten as:

55/6 - 17/3

= 55-34/6

= 21/6

= 7/2

= 3 1/2

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