Simple operation 7 / 3 * 15 / 14 * 8 / 5

Simple operation 7 / 3 * 15 / 14 * 8 / 5

7/3*15/14*8/5
=(7*15*8)/(3*14*5)
=(7/14)*(15/3*5)*8
=1/2*1*8
=4