4 1/2 * 1 3/10 + 2 3/10 * 1 3/10 + 3 17/20 * 1 3/10 + 2 7/10 * 1 3/10 - ( 2 2/5 * 1 2/5 - 1 1/10 * 1 2/5 + 7/20 * 1 2/5 ) = 9/2 * 13/10 + 23/10 * 13/10 + 77/20 * 13/10 + 27/10 * 13/10 - ( 12/5 * 7/5 - 11/10 * 7/5 + 7/20 * 7/5 ) = 117/20 + 299/100 + 1001/200 + 351/100 - ( 84/25 - 77/50 + 49/100 ) = 1170/200 + 598/200 + 1001/200 + 702/200 - ( 672/200 - 308/200 + 98/200 ) = 3471/200 - 462/200 = 3009/200 = 15 9/200
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4 1/2 * 1 3/10 + 2 3/10 * 1 3/10 + 3 17/20 * 1 3/10 + 2 7/10 * 1 3/10 - ( 2 2/5 * 1 2/5 - 1 1/10 * 1 2/5 + 7/20 * 1 2/5 ) = 9/2 * 13/10 + 23/10 * 13/10 + 77/20 * 13/10 + 27/10 * 13/10 - ( 12/5 * 7/5 - 11/10 * 7/5 + 7/20 * 7/5 ) = 117/20 + 299/100 + 1001/200 + 351/100 - ( 84/25 - 77/50 + 49/100 ) = 1170/200 + 598/200 + 1001/200 + 702/200 - ( 672/200 - 308/200 + 98/200 ) = 3471/200 - 462/200 = 3009/200 = 15 9/200