post 4 1/4 feet in length. post must be installed 7/8below ground level what is the height
To find the height of the post, we need to subtract the portion of the post that is installed below ground level from its total length.
The total length of the post is 4 1/4 feet. To convert this mixed fraction to an improper fraction, we multiply the whole number (4) by the denominator (4), then add the numerator (1). This gives us 17/4 feet.
The portion of the post below ground level is 7/8 feet.
To find the height, we subtract the portion below ground level from the total length:
17/4 - 7/8 = (17/4) * (2/2) - 7/8
= 34/8 - 7/8
= (34 - 7) / 8
= 27/8 feet.
Therefore, the height of the post is 27/8 feet or 3 3/8 feet.
To determine the height of the post above the ground, you'll need to subtract the portion of the post that is installed below ground level from the total length.
Total length of the post: 4 1/4 feet
Installation below ground level: 7/8 feet
To subtract the fraction, convert it to a common denominator:
7/8 feet = (7/8) * (4/4) = 28/32 feet
Now subtract the installation depth from the total length:
4 1/4 feet - 28/32 feet
To subtract mixed numbers, convert the mixed number to an improper fraction:
4 = 4 * 4/4 = 16/4
16/4 + 1/4 - 28/32 = 17/4 - 28/32
Now, find a common denominator and subtract:
(17/4) * (8/8) - 28/32 = 136/32 - 28/32 = 108/32
Finally, simplify the fraction:
108/32 = 27/8
Therefore, the height of the post above the ground is 27/8 feet.