1/5 x $1000 000 000 = $200 000 000
160000
one fifth of 40 is the same as 40 divided by 5 which is 8.
2/5 or 40%
eight divied by one fifth is 40. this is because you have to multiply by the reciprical of one fifth which is 5. five times eight is 40
40
8/40 + 5/40 = 13/40
200
1/40
that was simple 100 doubled is 200 then on fifth of 200 is 40 easy
40 000 000 x 1 000 000 = 40 000 000 000 000 = 4 x 1013
The answer is 40