4.00000
3.55.The 3rd digit after the decimal point is 8. As this is higher than or equal to 5, we round up the 4 to a 5.
Expressed as a decimal fraction, 4 5/8 is equal to 4.625.
Expressed as a surd, the square root of 15.92 is equal to sqrt(398)/5. Expressed as a decimal fraction rounded to two decimal places, this is equal to 3.99.
Expressed as a surd in its simplest form, sqrt(4) + sqrt(5) = 2 + sqrt(5). Expressed as a decimal, rounded to three decimal places, this is equal to 4.236.
Expressed as a decimal fraction, 5/4 is equal to 1.25.
1.25
Expressed as a decimal, 3 4/5 is equal to 3.8.
Expressed as a decimal, 4 1/5 is equal to 4.2.
Expressed as a decimal, 4 3/5 is equal to 4.6.
Expressed as a decimal, 4/5 is equal to 0.8. Expressed as a decimal, 3/4 is equal to 0.75. Therefore, 4/5 is larger than 3/4.
5 divided by 4 is equal to 1 and a quarter which is also equal to 1.25.
You first look at the third decimal place. In this case it is 7. Then you look at the decimal place after that (the 4th one) and if it larger or equal to 5, then you round up. If it is 4 or smaller, then you leave it be. So in this one 55.06756 = 55.068 to 3 decimal places.