Question

six rational numbers between2/3and2/5

Answer 1

8/5and formula is a+b/2 assume the getting answer as b

Answer 2

LCM of denominators(3 and 5)= 15... Now multiply these two rational numbers with such a number do that denominators for both becomes 15........2/3×5/5=10/15..........2/5×3/3= 6/15............ Since there are only 3 rational no.s between 6/15 and 10/15 so further multiply 6/15&10/15 with same numbers....... 6/15×2/2= 12/30.........10/15×2/2=20/30....... Now six rational numbers are 13/30, 14/30,15/30,16/30,17/30,18/30....