you dont cuz your trying to make 20 or 19 out of an 8 and 3 if u calculate it
8+1+1+1=11
18, 19, 20
4 tens + 9 ones 3 tens + 19 ones 2 tens + 29 ones 1 ten + 39 ones 49 ones.
4/20 + 15/20 = 19/20
19 + 24 + 20 = 63/3 = 21 The average of the three numbers is 21.
Expressed as a proper fraction in its simplest form, 3/5 + 1/4 is equal to 17/20 or seventeen twentieths.
That is an A. You got 19 out of 20.
19, 20, 21
20
19, 20, and 21
18, 19, 20
you can't
They are 18, 19 and 20.