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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