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(14+4/5)*5/282/11*5/19+2/11*14/195/12-5/12*3/8简便计算
题目详情
(14+4/5)*5/28 2/11*5/19+2/11*14/19 5/12-5/12*3/8 简便计算
▼优质解答
答案和解析
(14+4/5)*5/28
=14X5/28+4/5X5/28
=10+1/7
=10又1/7
2/11*5/19+2/11*14/19
=2/11x（5/19+14/19）
=2/11x1
=2/11
5/12-5/12*3/8
=5/12x(1-3/8)
=5/12x5/8
=25/96
=14X5/28+4/5X5/28
=10+1/7
=10又1/7
2/11*5/19+2/11*14/19
=2/11x（5/19+14/19）
=2/11x1
=2/11
5/12-5/12*3/8
=5/12x(1-3/8)
=5/12x5/8
=25/96
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