math
posted by sam on .
part a: Lucy makes pottery to sell. One week , she uses 6 3/4kg of clay next week 2 2/3 clay. HOW much does she use during 2 weeks ? part b : The clay is in blocks that weigh 12 kg. How much clay does lucy have left after using clay for 2 weeks ?

6 3/4+2 2/3=27/4+8/3=(27*3+8*4)/12 you do it.

sorry lost, first time ever doing this. can you explain

Which part haven't you done before?
adding fractions?
multiplying? 
adding fractions

To add fractions, they must have the same denominator. Study this site carefully.
http://www.mathsisfun.com/numbers/commondenominator.html
6 3/4 + 2 2/3 = 6 9/12 + 2 8/12 = 8 17/12 = 9 5/12
http://www.mathsisfun.com/fractions_addition.html 
THANK YOU FOR THE SITE. WILL DEFINTELY GO OVER IT