Convert these unlike fractions to equivalent like fractions and add them. You must use the LCD to get the answer correct. If possible, reduce the final sum.

Question

1/7 = ?/?
+ 3/14 = ?/?
__________
?
-
??

Answer 1

http://www.mathsisfun.com/least-common-denominator.html

Answer 2

1/7=2/14
3/14=3/14
After adding them two fractions you should sum up to 5/14

Answer 3

Well I don't know what the answer is ,it's kind of hard