1/11 - 5/11 - 4/11, 1 - 1/4 + 3/4, 1/3 - 5/12 - 1/12, 3/4 - 5/8 + 6/8, 12 - LCD of 7/4 and 1/12, 9 - LCD of 1/9 and 2/3, 30 - LCD of 3/10 and 7/6, 11/24 - 7/8 - 5/12, 25/36 - 11/12 - 2/9, 19/18 or 1 1/18 - 5/6 + 2/9,

Adding and Subtracting Fractions

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