Gail read 2/15 of a book on monday and 3/5 of the book on tuesday a. what fraction of the book did she read on monday and tuesday
b. what fraction of the book does she still have left to read

a. 11/15

b. 4/15

Step-by-step explanation:

a. we need to add monday with Tuesday so we need to make the denominators equal

we can do that by making them both 15

so monday is already 15

and in Tuesday we can do that by multiplying 5 by 3 and we also need to multiply 3 by 3

so Tuesday becomes 9/15

then we add 2/15 + 9/15 = 11/15

b. we need to find what's left so we subtract 15/15 - 11/15 = 4/15

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )