-1
11
It is -1
you add five over 8 plus 4
The sum of 4/5 and 4/5 is 1 3/5
1 7/12 (one and seven-twelfths)
You can add 10 four times, or five eight times, or even two twenty times.
Before you can add fractions, you first need to convert the fractions so they have common denominators. Two thirds is equal to four sixths, so now we can add the fractions that have common denominators. Four sixths and five sixths equals eleven sixths, or one and five sixths left over. Now, add your whole numbers...one, four and the one gained when we converted the fraction equals six and five sixths.
8.3
First, add negative 5 and four. That answer is negative 1. Then add negative six, which is -7.
They are all numbers. Add more...four, five, six...
At least four, but it can be more. If the base is a triangle (three sides) add the base and you get four. if the base is a quadrilateral (four sides), add the base and you get five. However many sides the base has, add one.
Four and five are nine.