7/15*3/8+1/15*7/16+1/15*7/2,你能使这道题的计算变得简便吗?
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![7/15*3/8+1/15*7/16+1/15*7/2,你能使这道题的计算变得简便吗?](/uploads/image/z/556302-30-2.jpg?t=7%2F15%2A3%2F8%2B1%2F15%2A7%2F16%2B1%2F15%2A7%2F2%2C%E4%BD%A0%E8%83%BD%E4%BD%BF%E8%BF%99%E9%81%93%E9%A2%98%E7%9A%84%E8%AE%A1%E7%AE%97%E5%8F%98%E5%BE%97%E7%AE%80%E4%BE%BF%E5%90%97%3F)
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7/15*3/8+1/15*7/16+1/15*7/2,你能使这道题的计算变得简便吗?
7/15*3/8+1/15*7/16+1/15*7/2,你能使这道题的计算变得简便吗?
7/15*3/8+1/15*7/16+1/15*7/2,你能使这道题的计算变得简便吗?
原式=7/15*3/8+7/15*1/16+7/15*1/2=7/15*(3/8+1/16+1/2)=7/15*15/16=7/16
=7/15*(3/8+1/16+1/2)
=7/15*15/16=7/16
7/15*3/8+1/15*7/16+1/15*3又1/2
简算:7/15×3/8+1/15×7/16+7/2÷15
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7/15*3/8+1/15*7/16+1/15*7/2,你能使这道题的计算变得简便吗?
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