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a. 211 / 35 + (-33 / 12 )
= 2532 + (-1155) / 420 ( LCM of 35 and 12)
=1377 / 420
b. 8 / 75 (Same denominators)
c. 13 / 5 + 145 / 20 - 96 / 15
LCM = 60
195 + 435 + 384 / 60
=> 1014 / 60
=> 19 / 10
d. LCM = 180
=> 60 - 30 + 90 / 180
=> 120 / 180
=> 2/3
e. LCM = 44
13 / 22 + 19 / 44
=> 26 + 19 / 44
=> 45 / 44
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