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1
原式=1/2x24-1/6x24+3/8x24-5/12x24
=12-4+9-10
=5
2
原式=16/5x51/7x21/51x25/16
=(16/5x25/16)x(51/7x21/51)
=5x3
=15
3
原式=（50-1/25）x(-5)
=-50x5+1/25x5
=-250+1/5
=-249又4/5
4
原式=-3.14x35.2-3.14x46.6-3.14x18.2
=-3.14x(35.2+46.6+18.2)
=-3.14x100
=-314
如果本题有什么不明白可以追问，如果满意请点击“选为满意答案”
如果有其他问题请采纳本题后另发点击向我求助，答题不易，请谅解，谢谢。
祝学习进步！
1
原式=1/2x24-1/6x24+3/8x24-5/12x24
=12-4+9-10
=5
2
原式=16/5x51/7x21/51x25/16
=(16/5x25/16)x(51/7x21/51)
=5x3
=15
3
原式=（50-1/25）x(-5)
=-50x5+1/25x5
=-250+1/5
=-249又4/5
4
原式=-3.14x35.2-3.14x46.6-3.14x18.2
=-3.14x(35.2+46.6+18.2)
=-3.14x100
=-314
如果本题有什么不明白可以追问，如果满意请点击“选为满意答案”
如果有其他问题请采纳本题后另发点击向我求助，答题不易，请谅解，谢谢。
祝学习进步！
温馨提示：答案为网友推荐，仅供参考
第1个回答 2013-08-02
1
原式=1/2x24-1/6x24+3/8x24-5/12x24
=12-4+9-10
=5
2
原式=16/5x51/7x21/51x25/16
=(16/5x25/16)x(51/7x21/51)
=5x3
=15
3
原式=（50-1/25）x(-5)
=-50x5+1/25x5
=-250+1/5
=-249又4/5
4
原式=-3.14x35.2-3.14x46.6-3.14x18.2
=-3.14x(35.2+46.6+18.2)
=-3.14x100
=-314
原式=1/2x24-1/6x24+3/8x24-5/12x24
=12-4+9-10
=5
2
原式=16/5x51/7x21/51x25/16
=(16/5x25/16)x(51/7x21/51)
=5x3
=15
3
原式=（50-1/25）x(-5)
=-50x5+1/25x5
=-250+1/5
=-249又4/5
4
原式=-3.14x35.2-3.14x46.6-3.14x18.2
=-3.14x(35.2+46.6+18.2)
=-3.14x100
=-314