The student will
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determine common multiples and factors, including least common multiple and greatest common factor;
add and subtract fractions having like and unlike denominators that are limited to 2, 3, 4, 5, 6, 8, 10, and 12, and simplify the resulting fractions, using common multiples and factors;
add and subtract with decimals; and
solve single-step and multistep practical problems involving addition and subtraction with fractions and with decimals.