Homework help please!?

Fin the value for N that makes each sentence correct:



19 a.2/3+3/4=N b.3/4+N=4/5 c. N - 3/5 = 1/4



For exercises 20-25 find each sum or difference

20. 2 5/6 + 1 1/3 =

21. 15 5/8 + 10 5/6 =

22. 4 4/9 + 2 1/5=

23.6 1/4 - 2 5/6 =

24. 3 1/2 - 1 4/5 =

25. 4 1/3 - 5/12 =

50. It takes 8 people to clear an acre of weeds in 4 hours.

a.How many acres can 16 people clear in 4 hours?

b.How many acres can 2 people clear in 4 hours?

c. How many people are needed to clear 3 acres in 4 hours?

d.How many people are needed to clear 3 acres in 2 hours?



Best answer = 10 points!!

Feelin kinda lazy =P

Homework help please!?
19a. n=17

b. n=34

c. n=17



20. 4 1/6

21. 26 15/24

22. 6 29/45

23. 3 5/12

24. 1 7/10

25. 3 11/12



50a. 2

b. 1/4

c. 24

d. 48
Reply:first question, how old are you by the way?



hmm..



2/3 + 3/4 is 1 5/12 or 17/12 (but this is an improper fraction).



b.) 1/20

c.) 17/20 or 1 5/12.

20.) 4 1/6

21.) 26 11/24

22.) 6 29/45

23.) 3 5/12

24.) 1 7/10

25.) 3 11/12



you answer the rest.. hehe... i hope your teacher won't look for the solutions (which i doubt). So if iwere you, try to ask your classmates how they come up with their answers.



Knowing the answer is not real question here, but knowing HOW to find the answers.. =)



Good luck!!

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