
15/6减去括号7/16加上1/4,反括号加上1/4简便运算?
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计算:
15/6减去括号7/16加上1/4,反括号加上1/4
=15/6-(7/16+1/4)+1/4
=15/6-7/16+(1/4-1/4)
=15/6-7/16
=120/48-21/48
=99/48
=33/16
15/6减去括号7/16加上1/4,反括号加上1/4
=15/6-(7/16+1/4)+1/4
=15/6-7/16+(1/4-1/4)
=15/6-7/16
=120/48-21/48
=99/48
=33/16
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原式
=15/6-1/4-7/16
=30/12-3/12-7/16
=27/12-7/16
=108/48-21/48
=87/48
=1又39/48
=15/6-1/4-7/16
=30/12-3/12-7/16
=27/12-7/16
=108/48-21/48
=87/48
=1又39/48
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15/6-(7/16+1/4)+1/4
=15/6-7/16-1/4+1/4
=15/6-7/16
=120/48-21/48
=99/48
=33/16
=15/6-7/16-1/4+1/4
=15/6-7/16
=120/48-21/48
=99/48
=33/16
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