Trang chủ » Hỏi đáp » Môn Toán (56/13 – 17/31 – 19/20). (1/3 -1/12+ 1/-4) 24.(1/3+1/4+1/6+1/8) 5/7.(7/16.17/5-7/10.1/8) 12/12/2023 (56/13 – 17/31 – 19/20). (1/3 -1/12+ 1/-4) 24.(1/3+1/4+1/6+1/8) 5/7.(7/16.17/5-7/10.1/8)
Giải đáp: (56/13-17/31-19/20).(1/3-1/12+1/-4) =(56/13-17/31-19/20).(1/3-1/12-1/4) =(56/13-17/31-19/20).(4/12-1/12-3/12) =(56/13-17/31-19/20).(\frac{4-1-3}{12}) =(56/13-17/31-19/20).0 =0 ___________________________ 24.(1/3+1/4+1/6+1/8) =24.(8/24+6/24+4/24+3/24) =24.(\frac{8+6+4+3}{24}) =24.\frac{21}{24} =\frac{24.21}{24] =21 ______________________ 5/7.(7/16 . 17/5-7/10. 1/8) =5/7.(\frac{119}{80}-\frac{7}{80}) =5/7.\frac{112}{80} =5/7. 7/5 =1 Trả lời
1 bình luận về “(56/13 – 17/31 – 19/20). (1/3 -1/12+ 1/-4) 24.(1/3+1/4+1/6+1/8) 5/7.(7/16.17/5-7/10.1/8)”