how do you do adding and subtracting mixed numbers then reduce to lowest terms?
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(90 & 1/2) + (32 & 5/16)=90+32+(1/2) +(5/16)

=122 + (1/2) +(5/16)

=122+(8/16)+(5/16)

=122 +(13/16)

=122.8125
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