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5/22 +( -8/21)+ 6/11 +3/7
please do step-by-step
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Step-by-step explanation:
5/22 - 8/21 + 6/11 + 3/7
L.C.M of 22,21,11,7 is 462
5/22 = 105/462 , -8/21 = -176/462 , 6/11 = 252/462 ,3/7 = 198/462
105 - 176 + 252 + 198
------------------------------- = -207/462
462
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