2.625
0
16
One and a half is twelve eights.plus five eights, is seventeen eights. That is two and one eighth in total, or 2.125 in decimal.
It is 2: and there is no requirement to have a decimal point.
5/8 is 0.625 and 2/3 is 0.66666.... (repeating decimal)
5/8 divided by 2/7 = 35/16 or 2.1875 as a decimal
0.25
2.8
The number 8 wholes and 79 hundredths is 8.79 as a decimal. The whole number goes before the decimal point. Hundredths means two spaces after the decimal point.
3/8
2.75
The meaning of the question is ambiguous. Five eights is 5*8 = 40 Two eighths (?) is 2/8 = 1/4 = 0.25 So the sum would be 40.25 Alternatively five eights plus two eights = seven eights = 7*8 = 56