Add it
It is a mixed fraction.
1-a, which may or may not be a fraction.
It is a fraction - which may be mixed or proper.
The process is still that of addition.
The sum of a fraction? Well, to find the sum of the fraction all you do is divide both top and bottom numbers.
Add it
The sum is exactly and unequivocally 1.8
A mixed fraction.
It is a mixed fraction.
1-a, which may or may not be a fraction.
It is a fraction - which may be mixed or proper.
The sum is the answer for adding and the difference is the answer for subtracting...
A mixed number or mixed fraction.
The process is still that of addition.
It is the same as for any other addition. The answer is the sum.
This is called a mixed number.A mixed number is a number showing the sum of a whole number and a fraction