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

\(-\frac{1}{3} ⋅ -\frac{3}{4}\)

Vermenigvuldigen (1)
00du - Rekenen met breuken - basis - 63ms - data pool: #33020 (62ms)

a

\(-\frac{1}{3} ⋅ -\frac{3}{4} = \frac{3}{12} = \frac{1}{4}\)

1p

1p

b

\(-1\frac{1}{5} ⋅ -\frac{3}{7}\)

Vermenigvuldigen (2)
00dv - Rekenen met breuken - basis - 1ms - data pool: #33020 (62ms)

b

\(-1\frac{1}{5} ⋅ -\frac{3}{7} = -\frac{6}{5} ⋅ -\frac{3}{7} = \frac{18}{35}\)

1p

1p

c

\(1\frac{3}{5} ⋅ -1\frac{1}{7}\)

Vermenigvuldigen (3)
00dw - Rekenen met breuken - basis - 0ms - data pool: #33020 (62ms)

c

\(1\frac{3}{5} ⋅ -1\frac{1}{7} = \frac{8}{5} ⋅ -\frac{8}{7} = -\frac{64}{35} = -1\frac{29}{35}\)

1p

1p

d

\(-2 ⋅ \frac{4}{7}\)

Vermenigvuldigen (4)
00dx - Rekenen met breuken - basis - 0ms - data pool: #33020 (62ms)

d

\(-2 ⋅ \frac{4}{7} = -\frac{2}{1} ⋅ \frac{4}{7} = -\frac{8}{7} = -1\frac{1}{7}\)

1p

opgave 2

Bereken.

1p

a

\(\frac{4}{9} : \frac{1}{6}\)

Delen (1)
00dy - Rekenen met breuken - basis - 322ms - data pool: #43684 (322ms)

a

\(\frac{4}{9} : \frac{1}{6} = \frac{4}{9} ⋅ \frac{6}{1} = \frac{24}{9} = \frac{8}{3} = 2\frac{2}{3}\)

1p

1p

b

\(\frac{4}{5} : -3\frac{1}{6}\)

Delen (2)
00dz - Rekenen met breuken - basis - 1ms - data pool: #43684 (322ms)

b

\(\frac{4}{5} : -3\frac{1}{6} = \frac{4}{5} : -\frac{19}{6} = \frac{4}{5} ⋅ -\frac{6}{19} = -\frac{24}{95}\)

1p

1p

c

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

Delen (3)
00e0 - Rekenen met breuken - basis - 0ms - data pool: #43684 (322ms)

c

\(-1\frac{2}{5} : -5\frac{1}{2} = -\frac{7}{5} : -\frac{11}{2} = -\frac{7}{5} ⋅ -\frac{2}{11} = \frac{14}{55}\)

1p

1p

d

\(-\frac{5}{7} : -2\)

Delen (4)
00e1 - Rekenen met breuken - basis - 0ms - data pool: #43684 (322ms)

d

\(-\frac{5}{7} : -2 = -\frac{5}{7} : -\frac{2}{1} = -\frac{5}{7} ⋅ -\frac{1}{2} = \frac{5}{14}\)

1p
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