Question

A parent died and left an estate to four children. One inherited one fifth
of the​ estate, the second inherited three tenths, and the third inherited three tenths. How much did the fourth​ inherit?

Answer 1

the fourth inherited 1/5

Answer 2

Hi!

First, add all the fractions.

1 3 3 ?
-- + -- + --- = ---
5 10 10 ?

1/5 = 2/10

2 3 3 8
-- + -- + --- = ---
10 10 10 10

Now subtract.

10 8 2
--- - --- = --
10 10 10

2/10 = 1/5

The fourth inherited 1/5.

Hope this helps!
-Peredhel