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14.
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1/2 + 1/3 * 1/7 = 1/2 + 1/21 = 21/42 + 2/42 = 23/42
4/9 * 3/14 = 2/21
2/3 x 21 = 14
6/63=3(2)/3(21)=2/21 2/21 times.
(20/21)/(2/3) = (20/21) x (3/2) = 10/7 = 1 and 3/7 = 1.428571429