SOLUTION: solve the following: 1 1/15 + 3 3/10 - 2 4/5 i am lost again. thank you

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: solve the following: 1 1/15 + 3 3/10 - 2 4/5 i am lost again. thank you       Log On


   

Question 98876: solve the following:
1 1/15 + 3 3/10 - 2 4/5
i am lost again.
thank you
Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
1 1/15 + 3 3/10 - 2 4/5
There are two ways to solve these, I'm not sure which your teacher wants, but I will do it by turning them into improper fractions;
First lets take the first two:
11%2F15+33%2F10=
turn into improper fractions;
16%2F15+33%2F10
you need to have common denominators to add and subtract fractions, which will be 30;
32%2F30+99%2F30=131%2F30;
Now lets take that answer and subtract the next fraction from that one;
131%2F30-14%2F5
find common denominator, 30;
131%2F30-84%2F30=47%2F30
turn into a mixed fraction;
47%2F30=117%2F30
:)