4/5+3/4x1/6-3/10 可简便运算吗
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4/5+3/4x1/6-3/10可简便运算吗4/5+3/4x1/6-3/10可简便运算吗4/5+3/4x1/6-3/10可简便运算吗4/5+3/4×1/6-3/10(先做乘法)(约分)=4/5+1/8
4/5+3/4x1/6-3/10 可简便运算吗
4/5+3/4x1/6-3/10 可简便运算吗
4/5+3/4x1/6-3/10 可简便运算吗
4/5+3/4×1/6-3/10(先做乘法)(约分)
=4/5+1/8-3/10
=4/5-3/10+1/8(通分前两个分式)
=(8-3)/10+1/8
=1/2+1/8
=5/8
先把3/4x1/6约分,然后再算4/5-3/10,这样不就简单多了么
先算3/4x1/6
4/5+3/4 x 1/6-3/10
=4/5+1/4 x 1/2-3/10
=0.8+0.25x0.5-0.3
=0.8+0.125-0.3
=0.625
=5/8
sorry! 才发现求助,恭喜你解决了问题。