1又2/3*【7又5/6+(4.125—4又1/8)—4又5/6】的简便计算怎么做
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![1又2/3*【7又5/6+(4.125—4又1/8)—4又5/6】的简便计算怎么做](/uploads/image/z/438130-10-0.jpg?t=1%E5%8F%882%2F3%2A%E3%80%907%E5%8F%885%2F6%2B%EF%BC%884.125%E2%80%944%E5%8F%881%2F8%EF%BC%89%E2%80%944%E5%8F%885%2F6%E3%80%91%E7%9A%84%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E6%80%8E%E4%B9%88%E5%81%9A)
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1又2/3*【7又5/6+(4.125—4又1/8)—4又5/6】的简便计算怎么做
1又2/3*【7又5/6+(4.125—4又1/8)—4又5/6】的简便计算怎么做
1又2/3*【7又5/6+(4.125—4又1/8)—4又5/6】的简便计算怎么做
拆开来做.
7又5/6 = 7 + 5/6
0.125 = 1/8 所以 (4.125—4又1/8)= 0
4又5/6 = 4 + 5/6
所以 【7又5/6+(4.125—4又1/8)—4又5/6】 = 7 + 5/6 + 0 - 4 - 5/6 = 3
1又2/3* 3 = 1*3 + 2/3 *3 = 3 + 2 = 5