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Nguyễn Lê Phước Thịnh · Accepted Answer

1: =1/4+3/4=4/4=12: =1+4*2/5=1+8/5=13/53: =0,09+2/5-1/2=0,09+0,4-0,5=0,09-0,1=-0,014: =2/7*14-1=4-1=35: =0,2+0,3*2=0,2+0,6=0,86: =3/8-1/2+1/3=3/8-1/6=9/24-4/24=5/247: =7/12-15/24=14/24-15/24=-1/248: $=-\dfrac{1}{3}\cdot\dfrac{6}{7}-\dfrac{13}{14}+1=-\dfrac{2}{7}-\dfrac{13}{14}+1=-\dfrac{2}{7}+\dfrac{1}{14}=\dfrac{-3}{14}$9: $=\dfrac{1}{9}-6:\dfrac{1}{2}+5-1=\dfrac{1}{9}-12+4=\dfrac{1}{9}-8=-\dfrac{71}{9}$10: $=\dfrac{9-10}{15}:\dfrac{1}{9}-20=-\dfrac{3}{5}-20=-20,6$Câu trả lời: 1: =1/4+3/4=4/4=12: =1+4*2/5=1+8/5=13/53: =0,09+2/5-1/2=0,09+0,4-0,5=0,09-0,1=-0,014: =2/7*14-1=4-1=35: =0,2+0,3*2=0,2+0,6=0,86: =3/8-1/2+1/3=3/8-1/6=9/24-4/24=5/247: =7/12-15/24=14/24-15/24=-1/248: $=-\dfrac{1}{3}\cdot\dfrac{6}{7}-\dfrac{13}{14}+1=-\dfrac{2}{7}-\dfrac{13}{14}+1=-\dfrac{2}{7}+\dfrac{1}{14}=\dfrac{-3}{14}$9: $=\dfrac{1}{9}-6:\dfrac{1}{2}+5-1=\dfrac{1}{9}-12+4=\dfrac{1}{9}-8=-\dfrac{71}{9}$10: $=\dfrac{9-10}{15}:\dfrac{1}{9}-20=-\dfrac{3}{5}-20=-20,6$

Sahara · Answer

Bài 1:1)$\dfrac{1}{4}+\left|-\dfrac{3}{4}\right|=\dfrac{1}{4}+\dfrac{3}{4}=1$2)$1+4\cdot\left|-\dfrac{2}{5}\right|=1+4\cdot\dfrac{2}{5}=1+\dfrac{8}{5}=\dfrac{13}{5}$3)$0,09+\left|-\dfrac{2}{5}\right|-\dfrac{1}{2}=\dfrac{9}{100}+\dfrac{2}{5}-\dfrac{1}{2}=\dfrac{9}{100}+\dfrac{40}{100}-\dfrac{50}{100}=-\dfrac{1}{100}$4)$\left|-\dfrac{2}{7}\right|:\dfrac{1}{14}-1=\dfrac{2}{7}\cdot14-1=4-1=3$5)$\left|-0,2\right|+\left|-0,3\right|\cdot2=0,2+0,6=0,8$6)$\dfrac{3}{8}-\left|\dfrac{1}{3}-\dfrac{1}{2}\right|=\dfrac{3}{8}-\left|-\dfrac{1}{6}\right|=\dfrac{3}{8}-\dfrac{1}{6}=\dfrac{5}{24}$7)$\dfrac{7}{12}-\left|-\dfrac{3}{4}\cdot\dfrac{5}{6}\right|=\dfrac{7}{12}-\dfrac{5}{8}=-\dfrac{1}{24}$8)$\dfrac{-1^{2023}}{3}\cdot\dfrac{6}{7}-\left|\dfrac{1}{14}-1\right|+2022^0$$=-\dfrac{1}{3}\cdot\dfrac{6}{7}-\dfrac{13}{14}+1$$=-\dfrac{2}{7}-\dfrac{13}{14}+1$$=-\dfrac{3}{14}$9)$\left(-\dfrac{1}{3}\right)^2-6:\left|-\dfrac{1}{2}\right|+\sqrt{25}-2023^0$$=\dfrac{1}{9}-12+5-1$$=-\dfrac{71}{9}$10)$\left(\dfrac{3}{5}-\dfrac{2}{3}\right):\left|-\dfrac{1}{9}\right|+\left(-20,23\right)^0$$=-\dfrac{1}{15}\cdot9+1$$=-\dfrac{3}{5}+1=\dfrac{2}{5}$#kễnhCâu trả lời: Bài 1:1)$\dfrac{1}{4}+\left|-\dfrac{3}{4}\right|=\dfrac{1}{4}+\dfrac{3}{4}=1$2)$1+4\cdot\left|-\dfrac{2}{5}\right|=1+4\cdot\dfrac{2}{5}=1+\dfrac{8}{5}=\dfrac{13}{5}$3)$0,09+\left|-\dfrac{2}{5}\right|-\dfrac{1}{2}=\dfrac{9}{100}+\dfrac{2}{5}-\dfrac{1}{2}=\dfrac{9}{100}+\dfrac{40}{100}-\dfrac{50}{100}=-\dfrac{1}{100}$4)$\left|-\dfrac{2}{7}\right|:\dfrac{1}{14}-1=\dfrac{2}{7}\cdot14-1=4-1=3$5)$\left|-0,2\right|+\left|-0,3\right|\cdot2=0,2+0,6=0,8$6)$\dfrac{3}{8}-\left|\dfrac{1}{3}-\dfrac{1}{2}\right|=\dfrac{3}{8}-\left|-\dfrac{1}{6}\right|=\dfrac{3}{8}-\dfrac{1}{6}=\dfrac{5}{24}$7)$\dfrac{7}{12}-\left|-\dfrac{3}{4}\cdot\dfrac{5}{6}\right|=\dfrac{7}{12}-\dfrac{5}{8}=-\dfrac{1}{24}$8)$\dfrac{-1^{2023}}{3}\cdot\dfrac{6}{7}-\left|\dfrac{1}{14}-1\right|+2022^0$$=-\dfrac{1}{3}\cdot\dfrac{6}{7}-\dfrac{13}{14}+1$$=-\dfrac{2}{7}-\dfrac{13}{14}+1$$=-\dfrac{3}{14}$9)$\left(-\dfrac{1}{3}\right)^2-6:\left|-\dfrac{1}{2}\right|+\sqrt{25}-2023^0$$=\dfrac{1}{9}-12+5-1$$=-\dfrac{71}{9}$10)$\left(\dfrac{3}{5}-\dfrac{2}{3}\right):\left|-\dfrac{1}{9}\right|+\left(-20,23\right)^0$$=-\dfrac{1}{15}\cdot9+1$$=-\dfrac{3}{5}+1=\dfrac{2}{5}$#kễnh

Toru · Answer

1) $\dfrac{1}{4}+\left|-\dfrac{3}{4}\right|=\dfrac{1}{4}+\dfrac{3}{4}=1$2) $1+4\cdot\left|\dfrac{-2}{5}\right|=1+4\cdot\dfrac{2}{5}$$=\dfrac{5}{5}+\dfrac{8}{5}=\dfrac{13}{5}$3) $0,09+\left|-\dfrac{2}{5}\right|-\dfrac{1}{2}$$=0,09+0,4-0,5$$=-0,01$4) $\left|\dfrac{-2}{7}\right|:\dfrac{1}{14}-1$$=\dfrac{2}{7}\cdot14-1$$=4-1$$=3$5) $\left|-0,2\right|+\left|-0,3\right|\cdot2$$=0,2+0,3\cdot2$$=0,2+0,6$$=0,8$6) $\dfrac{3}{8}-\left|\dfrac{1}{3}-\dfrac{1}{2}\right|$$=\dfrac{3}{8}-\left|-\dfrac{1}{6}\right|$$=\dfrac{3}{8}-\dfrac{1}{6}$$=\dfrac{5}{24}$7) $\dfrac{7}{12}-\left|\dfrac{-3}{4}\cdot\dfrac{5}{6}\right|$$=\dfrac{7}{12}-\left|-\dfrac{5}{8}\right|$$=\dfrac{7}{12}-\dfrac{5}{8}$$=-\dfrac{1}{24}$8) $\dfrac{-1^{2023}}{3}\cdot\dfrac{6}{7}-\left|\dfrac{1}{14}-1\right|
+2022^0$$=-\dfrac{1}{3}\cdot\dfrac{6}{7}-\left|-\dfrac{13}{14}\right|+1$$=-\dfrac{2}{7}-\dfrac{13}{14}+1$$=-\dfrac{4}{14}-\dfrac{13}{14}+\dfrac{14}{14}$$=-\dfrac{3}{14}$9) $\left(-\dfrac{1}{3}\right)^2-6:\left|\dfrac{-1}{2}\right|+\sqrt{25}-2023^0$$=\dfrac{1}{9}-6:\dfrac{1}{2}+5-1$$=\dfrac{1}{9}-12+4$$=\dfrac{1}{9}-8$$=-\dfrac{71}{9}$10) $\left(\dfrac{3}{5}-\dfrac{2}{3}\right):\left|\dfrac{-1}{9}\right|+\left(-20,23\right)^0$$=-\dfrac{1}{15}:\dfrac{1}{9}+1$$=-\dfrac{3}{5}+\dfrac{5}{5}$$=\dfrac{2}{5}$#ToruCâu trả lời: 1) $\dfrac{1}{4}+\left|-\dfrac{3}{4}\right|=\dfrac{1}{4}+\dfrac{3}{4}=1$2) $1+4\cdot\left|\dfrac{-2}{5}\right|=1+4\cdot\dfrac{2}{5}$$=\dfrac{5}{5}+\dfrac{8}{5}=\dfrac{13}{5}$3) $0,09+\left|-\dfrac{2}{5}\right|-\dfrac{1}{2}$$=0,09+0,4-0,5$$=-0,01$4) $\left|\dfrac{-2}{7}\right|:\dfrac{1}{14}-1$$=\dfrac{2}{7}\cdot14-1$$=4-1$$=3$5) $\left|-0,2\right|+\left|-0,3\right|\cdot2$$=0,2+0,3\cdot2$$=0,2+0,6$$=0,8$6) $\dfrac{3}{8}-\left|\dfrac{1}{3}-\dfrac{1}{2}\right|$$=\dfrac{3}{8}-\left|-\dfrac{1}{6}\right|$$=\dfrac{3}{8}-\dfrac{1}{6}$$=\dfrac{5}{24}$7) $\dfrac{7}{12}-\left|\dfrac{-3}{4}\cdot\dfrac{5}{6}\right|$$=\dfrac{7}{12}-\left|-\dfrac{5}{8}\right|$$=\dfrac{7}{12}-\dfrac{5}{8}$$=-\dfrac{1}{24}$8) $\dfrac{-1^{2023}}{3}\cdot\dfrac{6}{7}-\left|\dfrac{1}{14}-1\right|
+2022^0$$=-\dfrac{1}{3}\cdot\dfrac{6}{7}-\left|-\dfrac{13}{14}\right|+1$$=-\dfrac{2}{7}-\dfrac{13}{14}+1$$=-\dfrac{4}{14}-\dfrac{13}{14}+\dfrac{14}{14}$$=-\dfrac{3}{14}$9) $\left(-\dfrac{1}{3}\right)^2-6:\left|\dfrac{-1}{2}\right|+\sqrt{25}-2023^0$$=\dfrac{1}{9}-6:\dfrac{1}{2}+5-1$$=\dfrac{1}{9}-12+4$$=\dfrac{1}{9}-8$$=-\dfrac{71}{9}$10) $\left(\dfrac{3}{5}-\dfrac{2}{3}\right):\left|\dfrac{-1}{9}\right|+\left(-20,23\right)^0$$=-\dfrac{1}{15}:\dfrac{1}{9}+1$$=-\dfrac{3}{5}+\dfrac{5}{5}$$=\dfrac{2}{5}$#Toru

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