Answer:
3/40
Step-by-step explanation:
1/4 x 1/3 - 1/5 x 1/4 +1/4 x 1/6
(1/4 x 1/3) - (1/5 x 1/4) + (1/4 x 1/6)
1/12 - 1/20 + 1/24
1/30 + 1/24
3/40 or 0.075
