Question

999*1/2+999*1/6+999*1/12+999*1/20+999*1/30=?

Answer 1

Answer:

999*1/2+999*1/6+999*1/12+999*1/20+999*1/30

=999+(1/2)+999+(1/6)+999+(1/12)+999+(1/20)+999+(1/30)

= 999×5 + (1/2)+(1/6)+(1/12)+(1/20)+(1/30)

= 4995 + (30+10+5+3+2)/60

=4995 + 5/6

=4995*5/6