since
6 = 2 * 3 <--- two factors
8 = 2 * 2 * 2 <--- three factors
and since the "2" is there on each, then we can just use that instance of it once.
so instead of using 2 * 3 * 2 * 2 * 2, we'll use 2 * 3 * 2 * 2, and that is our LCD.
2 * 3 * 2 * 2 = 24.
The answer would be 21/50. If you have numbers with a few zeros you can cross one of the top amd bottom until you reach the other numbers, if that makes sense. You can changd 420/1000 to 42/100. Then just keep dividing it by a numner that goes evenly into both the numerator and denominator.
<span>1 sq yd = 36^2 sq in = 1296 sq in
so 170 sq in = 170/1296 sq yd
1 yd = 3 ft
1 ft = 12 in
170 sq in [ft/12 in] [ft/12 in] [yd/3 ft][yd/3 ft</span>
