Question

A parent died and left an estate to four children. One inherited 1/5 of the estate. the second inherited 3/10 and the third inherited 1/5. how much did the fourth child inherit

Answer 1

One child = 2/10
Another child= 2/10
Other child= 3/10
4th child = 3/10

Answer 2

The fourth child inherited 3/10 of the estate.

2/10+2/10+3/10= 7/10, so you need 3/10 to complete the equation.