Final answer:
To find the sum of fractions, we need to convert them to have a common denominator, then add the numerators.
Step-by-step explanation:
To find the sum of fractions, we need to have a common denominator. In this case, the common denominator is 15. So, we need to convert the fractions to have a denominator of 15.
For the first fraction, we multiply the numerator and denominator by 3 to get 18/15. For the second fraction, we multiply the numerator and denominator by 10 to get -140/150.
Adding the fractions gives us 18/15 + (-140/150) = -122/150.
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