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20又1/5-7/25/10又3/8+15又9/16
题目详情
20又1/5-7/25/10又3/8+15又9/16
▼优质解答
答案和解析
(20又1/5-7/25)/(10又3/8+15又9/16)
=(101/5-7/25)/(83/8+249/16)
=(498/25)/(415/16)
=498*16/25*415
=7968/10375
=(101/5-7/25)/(83/8+249/16)
=(498/25)/(415/16)
=498*16/25*415
=7968/10375
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