7.3*0.2+0.37/3.7 (5/12-5/16)*4/5+2/3 简便运算
问题描述:
7.3*0.2+0.37/3.7 (5/12-5/16)*4/5+2/3 简便运算
答
7.3*0.2+0.37/3.7
=1.46+0.1
=1.56;
(5/12-5/16)*4/5+2/3 简便运算
=(20/48-15/48)×(4/5)+2/3
=5/48×4/5+2/3
=1/12+8/12
=9/12
=3/4;
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