Getal & Ruimte (13e editie) - 2 havo/vwo

'Rekenen met breuken'.

2 havo/vwo 1.3 Breuken vermenigvuldigen en delen

Rekenen met breuken (8)

opgave 1

Bereken.

1p

a

\(-\frac{1}{9} ⋅ -\frac{3}{8}\)

Vermenigvuldigen (1)
00du - Rekenen met breuken - basis - 139ms - data pool: #33020 (138ms)

a

\(-\frac{1}{9} ⋅ -\frac{3}{8} = \frac{3}{72} = \frac{1}{24}\)

1p

1p

b

\(-1\frac{1}{8} ⋅ -\frac{1}{2}\)

Vermenigvuldigen (2)
00dv - Rekenen met breuken - basis - 1ms - data pool: #33020 (138ms)

b

\(-1\frac{1}{8} ⋅ -\frac{1}{2} = -\frac{9}{8} ⋅ -\frac{1}{2} = \frac{9}{16}\)

1p

1p

c

\(-1\frac{2}{5} ⋅ -1\frac{6}{7}\)

Vermenigvuldigen (3)
00dw - Rekenen met breuken - basis - 0ms - data pool: #33020 (138ms)

c

\(-1\frac{2}{5} ⋅ -1\frac{6}{7} = -\frac{7}{5} ⋅ -\frac{13}{7} = \frac{91}{35} = \frac{13}{5} = 2\frac{3}{5}\)

1p

1p

d

\(2 ⋅ -\frac{3}{7}\)

Vermenigvuldigen (4)
00dx - Rekenen met breuken - basis - 0ms - data pool: #33020 (138ms)

d

\(2 ⋅ -\frac{3}{7} = \frac{2}{1} ⋅ -\frac{3}{7} = -\frac{6}{7}\)

1p

opgave 2

Bereken.

1p

a

\(\frac{1}{5} : \frac{4}{5}\)

Delen (1)
00dy - Rekenen met breuken - basis - 299ms - data pool: #43684 (298ms)

a

\(\frac{1}{5} : \frac{4}{5} = \frac{1}{5} ⋅ \frac{5}{4} = \frac{5}{20} = \frac{1}{4}\)

1p

1p

b

\(\frac{6}{7} : -1\frac{3}{8}\)

Delen (2)
00dz - Rekenen met breuken - basis - 1ms - data pool: #43684 (298ms)

b

\(\frac{6}{7} : -1\frac{3}{8} = \frac{6}{7} : -\frac{11}{8} = \frac{6}{7} ⋅ -\frac{8}{11} = -\frac{48}{77}\)

1p

1p

c

\(-1\frac{4}{5} : -2\frac{3}{4}\)

Delen (3)
00e0 - Rekenen met breuken - basis - 0ms - data pool: #43684 (298ms)

c

\(-1\frac{4}{5} : -2\frac{3}{4} = -\frac{9}{5} : -\frac{11}{4} = -\frac{9}{5} ⋅ -\frac{4}{11} = \frac{36}{55}\)

1p

1p

d

\(5 : -3\frac{1}{2}\)

Delen (4)
00e1 - Rekenen met breuken - basis - 0ms - data pool: #43684 (298ms)

d

\(5 : -3\frac{1}{2} = \frac{5}{1} : -\frac{7}{2} = \frac{5}{1} ⋅ -\frac{2}{7} = -\frac{10}{7} = -1\frac{3}{7}\)

1p
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