\(\dfrac{3}{7}-\dfrac{2}{9}+\dfrac{1}{2}=\dfrac{54}{126}-\dfrac{28}{126}+\dfrac{63}{126}=\dfrac{89}{126}\)
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HN
8 tháng 7 2023 lúc 10:05
tính thuận tiện:dfrac{4}{5}+dfrac{2}{3}+dfrac{1}{5}+dfrac{1}{3} dfrac{17}{12}+dfrac{29}{7}-dfrac{8}{7}+dfrac{7}{12} dfrac{9}{15}+dfrac{16}{7}+dfrac{2}{5}-dfrac{1}{7}-dfrac{2}{14} dfrac{2}{5}+dfrac{6}{9}+dfrac{7}{4}+dfrac{3}{5}+dfrac{1}{3}+dfrac{1}{4}mik sẽ chỉ tick 3 bn xong trước phải chi tiết rõ ràng
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tính thuận tiện:
\(\dfrac{4}{5}+\dfrac{2}{3}+\dfrac{1}{5}+\dfrac{1}{3}\) \(\dfrac{17}{12}+\dfrac{29}{7}-\dfrac{8}{7}+\dfrac{7}{12}\) \(\dfrac{9}{15}+\dfrac{16}{7}+\dfrac{2}{5}-\dfrac{1}{7}-\dfrac{2}{14}\)
\(\dfrac{2}{5}+\dfrac{6}{9}+\dfrac{7}{4}+\dfrac{3}{5}+\dfrac{1}{3}+\dfrac{1}{4}\)
mik sẽ chỉ tick 3 bn xong trước phải chi tiết rõ ràng
HN
12 tháng 7 2023 lúc 19:40
Tínha.dfrac{4}{9}+dfrac{3}{7} dfrac{3}{4}+dfrac{7}{24} dfrac{1}{3}+dfrac{2}{9}+dfrac{4}{27}b.dfrac{5}{6}-dfrac{3}{8} dfrac{7}{15}-dfrac{11}{30} dfrac{2}{3}+dfrac{1}{6}-dfrac{7}{12}c.dfrac{18}{25}timesdfrac{15}{6} dfrac{30}{49}:dfrac{6}{7} dfrac{1}{2}timesdfrac{3}{4}:dfrac{6}{5}d.8timesdfrac{3}{5}:dfrac{12}{5} 4:dfrac{9}{5}:dfrac{10}{3}3 bn đầu tiên xong mik sẽ tick
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Tính
a.\(\dfrac{4}{9}+\dfrac{3}{7}\) \(\dfrac{3}{4}+\dfrac{7}{24}\) \(\dfrac{1}{3}+\dfrac{2}{9}+\dfrac{4}{27}\)
b.\(\dfrac{5}{6}-\dfrac{3}{8}\) \(\dfrac{7}{15}-\dfrac{11}{30}\) \(\dfrac{2}{3}+\dfrac{1}{6}-\dfrac{7}{12}\)
c.\(\dfrac{18}{25}\times\dfrac{15}{6}\) \(\dfrac{30}{49}:\dfrac{6}{7}\) \(\dfrac{1}{2}\times\dfrac{3}{4}:\dfrac{6}{5}\)
d.\(8\times\dfrac{3}{5}:\dfrac{12}{5}\) \(4:\dfrac{9}{5}:\dfrac{10}{3}\)
3 bn đầu tiên xong mik sẽ tick
a,dfrac{2}{3}xdfrac{5}{2}:dfrac{9}{5}b,dfrac{1}{3}xdfrac{1}{4}+dfrac{5}{6}c,dfrac{1}{2}-dfrac{7}{8}:dfrac{7}{4}d,dfrac{6}{5}-dfrac{4}{5}xdfrac{3}{2}
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a,\(\dfrac{2}{3}\)x\(\dfrac{5}{2}\):\(\dfrac{9}{5}\)
b,\(\dfrac{1}{3}\)x\(\dfrac{1}{4}\)+\(\dfrac{5}{6}\)
c,\(\dfrac{1}{2}\)-\(\dfrac{7}{8}\):\(\dfrac{7}{4}\)
d,\(\dfrac{6}{5}\)-\(\dfrac{4}{5}\)x\(\dfrac{3}{2}\)
a,dfrac{4}{9} : dfrac{3}{10} b,dfrac{3}{7} x dfrac{5}{7} c,dfrac{4}{9} : dfrac{3}{2} D dfrac{3}{9} + dfrac{5}{6} x dfrac{2}{3} E dfrac{2}{7} x dfrac{4}{3} + dfrac{2}{6} G dfrac{4}{7} : 2 + dfrac{4}{7}
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a,\(\dfrac{4}{9}\) : \(\dfrac{3}{10}\)
b,\(\dfrac{3}{7}\) x \(\dfrac{5}{7}\)
c,\(\dfrac{4}{9}\) : \(\dfrac{3}{2}\)
D \(\dfrac{3}{9}\) + \(\dfrac{5}{6}\) x \(\dfrac{2}{3}\)
E \(\dfrac{2}{7}\) x \(\dfrac{4}{3}\) + \(\dfrac{2}{6}\)
G \(\dfrac{4}{7}\) : 2 + \(\dfrac{4}{7}\)
Tính :a) 7 x dfrac{3}{14} - dfrac{1}{14} b) dfrac{3}{2} + dfrac{7}{4} x dfrac{2}{5}c) dfrac{9}{8} : 3 + dfrac{7}{8} : 3 d) 2 : dfrac{3}{4} - dfrac{5}{8} x dfrac{4}{3}
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Tính :
a) 7 x \(\dfrac{3}{14}\) - \(\dfrac{1}{14}\) b) \(\dfrac{3}{2}\) + \(\dfrac{7}{4}\) x \(\dfrac{2}{5}\)
c) \(\dfrac{9}{8}\) : 3 + \(\dfrac{7}{8}\) : 3 d) 2 : \(\dfrac{3}{4}\) - \(\dfrac{5}{8}\) x \(\dfrac{4}{3}\)
FH
10 tháng 5 2022 lúc 20:41
6. ÉT O ÉT
\(\dfrac{9}{7}\) và \(\dfrac{5}{6}\) \(\dfrac{4}{7}\) và \(\dfrac{8}{21}\) \(\dfrac{2}{5};\dfrac{1}{3}\) và \(\dfrac{1}{2}\) \(\dfrac{1}{3};\dfrac{4}{3}\) và\(\dfrac{1}{5}\)
Tính thuận tiện :
\(\dfrac{9}{5}+\dfrac{5}{7}+\dfrac{7}{5}+\dfrac{3}{7}\) = ?
\(\dfrac{1}{2}x\dfrac{45}{33}x\dfrac{1}{9}x\dfrac{11}{6}\) = ?
A,\(\dfrac{3}{5}+\dfrac{1}{6}\)
B,\(4+\dfrac{2}{5}\)
C,\(\dfrac{25}{12}-\dfrac{7}{6}\)
D,\(\dfrac{9}{7}-\dfrac{7}{6}\)
E,\(\dfrac{3}{7}\) x \(\dfrac{2}{5}\)
a \(\dfrac{3}{7}\)+\(\dfrac{3}{4}\)-\(\dfrac{1}{2}\)=
b \(\dfrac{6}{11}\)+\(\dfrac{2}{9}\)x12=
c \(\dfrac{5}{7}\)-\(\dfrac{8}{5}\):4=
dfrac{3}{7} + 4 ?dfrac{5}{9} x 3 ?dfrac{7}{8} - dfrac{2}{9} ?5 - dfrac{3}{4} ?dfrac{5}{7} : 6 ?dfrac{5}{6} x dfrac{2}{7} ?3 + dfrac{3}{4} ?dfrac{3}{5}xdfrac{4}{8} ?5 : dfrac{3}{8} ?Mong mn trả lời
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\(\dfrac{3}{7}\) + 4 = ?
\(\dfrac{5}{9}\) x 3 = ?
\(\dfrac{7}{8}\) - \(\dfrac{2}{9}\)= ?
5 - \(\dfrac{3}{4}\)= ?
\(\dfrac{5}{7}\) : 6 = ?
\(\dfrac{5}{6}\) x \(\dfrac{2}{7}\)= ?
3 + \(\dfrac{3}{4}\)= ?
\(\dfrac{3}{5}x\dfrac{4}{8}\) = ?
5 : \(\dfrac{3}{8}\)= ?
Mong mn trả lời