【1又1/10+2又7/10÷(3又1/12-112.5%)】×9/23 这道题怎样计算,请各位大虾指教,小妹感激不尽
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/15 22:17:47
![【1又1/10+2又7/10÷(3又1/12-112.5%)】×9/23 这道题怎样计算,请各位大虾指教,小妹感激不尽](/uploads/image/z/4036847-23-7.jpg?t=%E3%80%901%E5%8F%881%2F10%2B2%E5%8F%887%2F10%C3%B7%EF%BC%883%E5%8F%881%2F12-112.5%25%EF%BC%89%E3%80%91%C3%979%2F23+%E8%BF%99%E9%81%93%E9%A2%98%E6%80%8E%E6%A0%B7%E8%AE%A1%E7%AE%97%2C%E8%AF%B7%E5%90%84%E4%BD%8D%E5%A4%A7%E8%99%BE%E6%8C%87%E6%95%99%2C%E5%B0%8F%E5%A6%B9%E6%84%9F%E6%BF%80%E4%B8%8D%E5%B0%BD)
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【1又1/10+2又7/10÷(3又1/12-112.5%)】×9/23 这道题怎样计算,请各位大虾指教,小妹感激不尽
【1又1/10+2又7/10÷(3又1/12-112.5%)】×9/23 这道题怎样计算,请各位大虾指教,小妹感激不尽
【1又1/10+2又7/10÷(3又1/12-112.5%)】×9/23 这道题怎样计算,请各位大虾指教,小妹感激不尽
=[1.1+2.7÷(37/12-1125/1000)] × 9/23
=[1.1+2.7÷(37000/12000-13500/12000)] × 9/23
=[1.1+2.7÷(23500/12000) ]× 9/23
=(1.1+2.7÷47/24)× 9/23
=(1.1+27/10×24/47)× 9/23
=(1.1+27×24/470)× 9/23
=(11/10+648/470)× 9/23
=(517/470+648/470)× 9/23
=(1165/470)× 9/23
=1165×9÷23÷470
=2097/2162
≈0.97
【1又1/10+2又7/10÷(3又1/12-112.5%)】×9/23
=【1.1+2.7÷47/12】×9/23
=【11/10+162/235】×9/23
=841/470×9/23
=7569/10810