Measuring the length and saying it is 10 means nothing useful; 10 what? You might mean 10 yards, you might mean 10 metres, you might mean 10 lightyears. Likewise, measuring any dimension or property of something means nothing if you don't include the units it was measured in.
It must be the unit of the measurement that you are converting FROM.
It is the unit of the measurement which you are converting FROM.
In a fraction they must be in the same units. In a ratio they need not be.
A measurement must contain a numerical value and a unit of measurement. The numerical value quantifies the attribute being measured, while the unit provides a standard reference for interpreting that value. Together, they convey precise information about the size, amount, or extent of the measurement.
It is the units for the measurement which you are converting FROM.
It must be the unit of the measurement that you are converting FROM.
The unit of measurement
The value of the measurement and the units used.
It is the unit of the measurement which you are converting FROM.
Its units and something...
a number and a unit
the unit of mesurement
the unit of mesurement
In a fraction they must be in the same units. In a ratio they need not be.
a unit of measurement along with the number
A measurement must contain a numerical value and a unit of measurement. The numerical value quantifies the attribute being measured, while the unit provides a standard reference for interpreting that value. Together, they convey precise information about the size, amount, or extent of the measurement.
The measurement units and the degree of precision (significant figures or margin of error).