Sergeant U has 360 rounds of ammunition to distribute to Lance Corporal (LCpl) F, Lance Corporal (LC

Sergeant U has 360 rounds of ammunition to distribute to Lance Corporal (LCpl) F, Lance Corporal (LCpl) M and Lance Corporal (LCpl) Z in the ratio 3:5:7. How many rounds did Lance Corporal (LCpl) M receive?

Our ratio denominator is:
3 + 5 + 7 = 15

Lance Corporal (LCpl) M gets 5:15 of the ammunition. Using our fraction simplifier, we see that 5/15 = 1/3

So we take 360 rounds of ammunition times 1/3:
360/3 = 120