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a, \(\frac{4}{7}\): Giữ nguyên
\(2=\frac{14}{7}\)
b, \(3=\frac{12}{4}\)
\(\frac{6}{8}=\frac{3}{4}\)
a) \(\frac{4}{7}\): Giữ nguyên
\(2=\frac{4}{7}\)
b) \(3=\frac{12}{4}\)
\(\frac{6}{8}=\frac{3}{4}\)
1. Ta có :
a) \(\frac{4}{9}=\frac{4}{9}\); \(3=\frac{3}{1}=\frac{27}{9}\) b) \(3=\frac{3}{1}=\frac{42}{14}\); \(\frac{3}{7}=\frac{6}{14}\)
2.
\(\frac{13}{36}=\frac{26}{72}\); \(\frac{17}{24}=\frac{51}{72}\)
5 = 5 x 4 = 20
6 = 6 x 4 24
9 = 9 x 3 = 27
8 = 8 x 3 24
Chúc bạn học thật giỏi
\(\frac{5}{6}=\frac{5x3}{6x3}=\frac{15}{18}\)
\(\frac{4}{9}=\frac{4x2}{9x2}=\frac{8}{18}\)
Vậy \(\frac{5}{6}=\frac{15}{18}\); \(\frac{4}{9}=\frac{8}{18}\)
•\(\frac{5}{6}=\frac{15}{18}\)
• \(\frac{4}{9}=\frac{8}{18}\)
\(\frac{5}{6}=\frac{5x4}{6x4}=\frac{20}{24}\)
\(\frac{9}{8}=\frac{9x3}{8x3}=\frac{27}{24}\)
\(\frac{5}{6}\)và\(\frac{9}{8}\)
\(\frac{5}{6}=\frac{5\times4}{6\times4}=\frac{20}{24}\)
\(\frac{9}{8}=\frac{9\times3}{8\times3}=\frac{27}{24}\)
a)
\(\frac{5}{6}=\frac{5X4}{6X4}=\frac{20}{24}\)
\(\frac{7}{8}=\frac{7X3}{8X3}=\frac{21}{24}\)
b)
\(\frac{22}{15}=\frac{22X5}{15X5}=\frac{110}{75}\)
\(\frac{17}{25}=\frac{17X3}{25X3}=\frac{51}{75}\)
\(1.a,\frac{5}{7}=\frac{5.9}{7.9}=\frac{45}{63};\frac{4}{9}=\frac{4.7}{9.7}=\frac{28}{63}.\)
\(b,\frac{7}{15},\frac{5}{3}=\frac{5.5}{3.5}=\frac{25}{15}\)
\(c,\frac{11}{12}=\frac{11.4}{12.4}=\frac{44}{48};\frac{7}{48}\)
\(d,\frac{3}{2}=\frac{3.3}{2.3}=\frac{9}{6};\frac{2}{3}=\frac{2.2}{3.2}=\frac{4}{6}\)
\(e,\frac{1}{3}=\frac{1.4}{3.4}=\frac{4}{12};\frac{5}{4}=\frac{5.3}{4.3}=\frac{15}{12};\frac{10}{12}\)
1.5/6va36/6
2.110/75va51/75
1.\(\frac{5}{6}\) và \(\frac{36}{6}\)
2.\(\frac{110}{75}\) và \(\frac{51}{75}\)