Question 86266
1). -3 1/4 + 1/2 
= -13/4 + 2/4
=-11/4
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2). 3 + -4/5 
=  15/5 - 4/5
= 11/5
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3). -2 1/8 + -1 1/4 
= -17/8 - 10/8
= -27/8
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4). -25 + -17/3 
= -75/3 - 17/3
= -93/3
= -31
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Cheers,
Stan H.