math
posted by zavier .
please show work
19 and 6/7 +12 and 2/3

19 and 6/7 +12 and 2/3
When you add and subtract fractions, you must use the same common denominator.
Since 21 is evenly divided by both 7 and 3, 21 is the common denominator.
19 6/7 = 19 18/21
12 2/3 = 12 14/21
19 18/21 + 12 14/21 = 31 32/21 = 32 11/21
Respond to this Question
Similar Questions

math
Can someone please help me with this math problem. My teacher is looking for me to show my work, but I don't how to solve the problem to show my work. Please help!!! The problem is 2 1/2 + 3 1/4 + 3 5/8. Thank you for your help. 
mat115
Please help me with this math question. I am asked to show my work but I don't know how to solve the problem to show my work. The question is: Choose the correct list of factors of the number 8. Again, I have to show my work with this … 
math
2. Simplify. Please be sure to show all of your work. 3(9) – 5 – 3 3. Simplify. Please show all of your work 9c^3+7c(3c^312+c) 4. Solve 4x 3(5x8) =239(x+2) . Please show all of your work 5. Solve the following equation … 
6th grade math
Find the value fir each expression. Show your work. (13.28  7.8) divided by 4. I have the answer in the back of my book and when I try to work the problem out I keep getting the wrong answer. The answer is supposed to be 1.345 I can … 
Linear algebra
Show that the origin is the only equilibrium point of the system? 
Math
7k divided by 3=21 Can you please show me the work? 
Math
please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work.Sn: 12 + 42 + 72 + . . . + (3n  2)2 = n(6n^23n1)/2 … 
Math
Please help me with this step by step show your work problem. 4b8+1b^2+2b^3 (b= 2) My work 4b8+1b^2+2b^3 4(2)8+1(2^2)+2(2^3) 88+1416 8+8+516 16+516 5 Could you check my work? 
MATH PLEASE SHOW WORK
Three consecutive odd intergers are such that the sum of the squares of the first two integers is 54 more than 20 times the third integer. Determine the three integers. Please help and show all work thank you SHOW WORK SO I UNDERSTAND … 
tips.
Please show your work. Tutors will not do your homework for you. Please show your work for any question that you are posting.