11.1+3.1-_________=.99

Question

3.1 is put as a fraction and so is .99 

the denominator is 10

3.1=3 and 1 tenth of a whole

.99=99 tenths=9 and 9 tenths of a whole

11.1=11 and 1 tenth of a whole

dont know what to do!!!

Answer 1

11.1 +3.1 = 14.2        14.2 - X = .99        -X = .99 - 14.2     -X = - 13.21    -1X/-1 = -13.21/-1        X = 13.21