Arithmetic problems

Please show all steps taken to arrive at your answers as it is possible.

Problem # 1. Reduce this fraction to lowest terms.

121/132

Problem #2. Identifying the Properties
Name the property that justifies this equation.

77. x². 5 = 5x²

Problem #3 Addition and Subtraction of Real Numbers:

Please Evaluate.

1/3 - (- 1/ 4)

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...mmon factors between 11 and 12 [11 is a prime number] ; so lowest term is 11/12

Problem #2. Identifying the Properties
Name the property that justifies this equation.

77. x². 5 = 5x² ...