Question

0.87 repeating 7 written as a fraction is _____.

Answer 1

The easiest way to solve this is to add 0.8 to 0.07 repeating 7 as fractions. 0.8 as a fraction is 8/10 and the other one as a fraction is 7/90. To give them a common denominator, 8/10 becomes 72/90. The two add to 79/90.