Rekenen met breuken
04 - 12 oefeningen
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Vermenigvuldigen (1)
00du - basis - data pool: #33020 (131ms)
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Bereken. 1p a \(\frac{2}{5}⋅\frac{1}{9}\) |
a \(\frac{2}{5}⋅\frac{1}{9}=\frac{2}{45}\) 1p |
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Vermenigvuldigen (2)
00dv - basis - data pool: #33020 (131ms)
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Bereken. 1p a \(-\frac{5}{9}⋅1\frac{5}{7}\) |
a \(-\frac{5}{9}⋅1\frac{5}{7}=-\frac{5}{9}⋅\frac{12}{7}=-\frac{60}{63}=-\frac{20}{21}\) 1p |
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Vermenigvuldigen (3)
00dw - basis - data pool: #33020 (131ms)
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Bereken. 1p a \(2\frac{2}{9}⋅2\frac{1}{2}\) |
a \(2\frac{2}{9}⋅2\frac{1}{2}=\frac{20}{9}⋅\frac{5}{2}=\frac{100}{18}=\frac{50}{9}=5\frac{5}{9}\) 1p |
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Vermenigvuldigen (4)
00dx - basis - data pool: #33020 (131ms)
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Bereken. 1p a \(\frac{5}{7}⋅4\) |
a \(\frac{5}{7}⋅4=\frac{5}{7}⋅\frac{4}{1}=\frac{20}{7}=2\frac{6}{7}\) 1p |
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Delen (1)
00dy - basis - data pool: #43684 (161ms)
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Bereken. 1p a \(\frac{3}{4}:-\frac{1}{5}\) |
a \(\frac{3}{4}:-\frac{1}{5}=\frac{3}{4}⋅-\frac{5}{1}=-\frac{15}{4}=-3\frac{3}{4}\) 1p |
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Delen (2)
00dz - basis - data pool: #43684 (161ms)
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Bereken. 1p a \(3\frac{4}{5}:-\frac{3}{5}\) |
a \(3\frac{4}{5}:-\frac{3}{5}=\frac{19}{5}:-\frac{3}{5}=\frac{19}{5}⋅-\frac{5}{3}=-\frac{95}{15}=-\frac{19}{3}=-6\frac{1}{3}\) 1p |
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Delen (3)
00e0 - basis - data pool: #43684 (161ms)
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Bereken. 1p a \(-1\frac{2}{9}:-1\frac{1}{8}\) |
a \(-1\frac{2}{9}:-1\frac{1}{8}=-\frac{11}{9}:-\frac{9}{8}=-\frac{11}{9}⋅-\frac{8}{9}=\frac{88}{81}=1\frac{7}{81}\) 1p |
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Delen (4)
00e1 - basis - data pool: #43684 (161ms)
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Bereken. 1p a \(-4:-6\frac{2}{3}\) |
a \(-4:-6\frac{2}{3}=-\frac{4}{1}:-\frac{20}{3}=-\frac{4}{1}⋅-\frac{3}{20}=\frac{12}{20}=\frac{3}{5}\) 1p |
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Optellen (1)
00dq - basis - data pool: #40460 (121ms)
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Bereken. 1p a \(-1\frac{1}{9}+1\frac{2}{9}\) |
a \(-1\frac{1}{9}+1\frac{2}{9}=-\frac{10}{9}+\frac{11}{9}=\frac{1}{9}\) 1p |
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Optellen (2)
00dr - basis - data pool: #40460 (121ms)
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Bereken. 1p a \(2\frac{6}{7}-\frac{1}{5}\) |
a \(2\frac{6}{7}-\frac{1}{5}=\frac{20}{7}-\frac{1}{5}={100 \over 35}-{7 \over 35}=\frac{93}{35}=2\frac{23}{35}\) 1p |
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Optellen (3)
00ds - basis - data pool: #40460 (121ms)
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Bereken. 1p a \(\frac{5}{6}+\frac{1}{2}\) |
a \(\frac{5}{6}+\frac{1}{2}={5 \over 6}+{3 \over 6}=\frac{8}{6}=\frac{4}{3}=1\frac{1}{3}\) 1p |
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Optellen (4)
00dt - basis - data pool: #40460 (121ms)
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Bereken. 1p a \(-\frac{1}{6}+\frac{4}{9}\) |
a \(-\frac{1}{6}+\frac{4}{9}={-3 \over 18}+{8 \over 18}=\frac{5}{18}\) 1p |