How 1.4 mhz is carring 6 RBs in physical layer grid, please share the bandwidth calculation also?

Question

ABOUT PHYSICAL LAYER GRID

Answer 1

Answer 2

1.4Mhz = 6RB so as we know BW of RB is 15khz×12= 180Khz
So effective BW for 1.4MHz is
180KHz ×6 = 1.08MHz
Guard band = 1.08-1.4= 0.32MHz
Effective sub carrier are 12×6=72

Comments

(1.4-1.08)/180 then u will get 6 resource block. here 0.32 is used for gaurd band  its no use.