Types of gravel include: 1  Bank gravel: naturally deposited gravel intermixed with sand or clay found in and next to rivers and streams. 2  Bench gravel: a bed of gravel located on the side of a valley above the present stream bottom, indicating the former location of the stream bed when it was at a higher level.
1 is the sixth part of 6. 2 is two sixths, and also the third part, of 6. 3 is three sixths, and also half of 6. 4 is four sixths, and also two thirds, of 6. is the sixth part of 6. 2 is two sixths, and also the third part, of 6. 3 is three sixths, and also half of 6. 4 is four sixths, and also two thirds, of 6.
3 is the GCD of 6 and 9 because it's the largest number they can be divided by. So we'll divide the numerator by 3. 6 divided by 3 is 2. Then we'll divide the denominator by 3. 9 divided by 3 is 3. Now we've reduced 6/9 to 2/3, which is its simplest form.