In this sixth grade fraction worksheet, students are required to find the sum of or difference between two fractions having different denominators for each problem of this worksheet. Being unlike denominators, find the LCM or LCD of denominators, multiply LCD with both numerator and denominators of each fractions, simplify the fractions to have equal denominators and find the sum of or difference between the two numerators. The sum of or difference between numerators divided by the common denominator is the resulting fraction of these given fractions with unlike denominators.
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