I need to know how to work 1 5/6 + (-2 3/4)

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it's 15/6 + -23/4

use a calculator

Elaborating on making it into improper fractions:When you turn 1 5/6 into an improper fraction, it goes like this: 6 * 1 + 5which is 11, so the improper fraction is 11/6. The second term comes to be -11/4. You have to get a common denominator, so find the common factor for 4 and 6. That's 12; multiply both numbers by whatever number you need to multiply it by in order to get 12 on the bottom. When you complete the equation the answer is -11/12.