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¾ + ½ + ⅔ = 8/12 + 6/12 + 9/12 = 23/12 or 1 11/12
first find the GCF of the denominator which is 4,2,and 3 their common denominator is 12 then multiply 12 to ¾ write the answer : multiply 12 by ½ write the answer: multiply 12 by ⅔ also write the answer then add all the product of each factor just copy the denominator and reduce it