Answer: 37/100
Step-by-step explanation:
The fraction of a kilometer that he walked in all would be the sum of 27/100 and 1/10.
To add them, first find the lowest common multiple of both denominators. This number is 100 so will be the denominator.
Divide 100 by each denominator and multiply it by the numerator:
= (27 + 10) / 100
= 37/100
Note: 100/10 = 10
= 10 * 1 = 10 which is the second numerator.
