Okay first you have to divide
2 goes into 3
3/2
2 fits into 3 once
1 and the left over is 1 so
1 1/2
84 gallons/(2.8 gpm) = 30 minutes
Omg no do not click the link it’s takes all you’re information people have been doing this on app
4/7 × 3/4
(4 and 4 are cancelled )
7×3
the answer is 21