Simplify the followings: a. -4/5 x 3/7 + 4/5 x 3/7 b. 1⁄2 x 5/6 + 1/3 x 1⁄4
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a. -4/5 x 3/7 + 4/5 x 3/7 = -12/35 + 12/35 = 0
b. 1⁄2 x 5/6 + 1/3 x 1⁄4 = 5/12 + 1/12 = 6/12 = 1/2 = .5
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