Question

express 0.7999.... in the form of p/q, where p and q are integers and q is not equal to 0

Answer 1

0.7999=7999/10000
Here is P =7999
And Q=10000

Answer 2

X=0.7999...... 1 st equation
here, period =79
periodicity=2
so,we have to multiply 10 with both sides
so,10X=7.9999.......2 nd equation
subtract 1 st equation from 2nd equation
10X=7.9999..... - X=0.7999.....
9X =7.2
multiply 10 with both sides
so,90X=72
X=72/90
X=3/5
0.7999... in p/Q form=3/5