Question

what number should be added to 2/7 to get 3/14

Answer 1

let the no.be x

x+2/7=3/14

x=3/14-2/7

x=3-4/14

x=-1/14

so -1 /14 added to 2/7 to get 3/14

Answer 2

the number which should be added is -1/14
hope this helps you....