# 2.14 Breuke - toets

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## Memorandum

1. a) 3

b) 6

2. a) $\frac{4}{7}$ = $\frac{\text{12}}{\text{21}}$

$\frac{2}{3}$ = $\frac{\text{14}}{\text{21}}$

<

b) $\frac{8}{9}$ = $\frac{\text{80}}{\text{90}}$

$\frac{9}{\text{10}}$ = $\frac{\text{81}}{\text{90}}$

<

3. a) = 4 $\frac{2}{3}$ + $\frac{4}{5}$

= 4 $\frac{\text{10}}{\text{15}}$ + $\frac{\text{12}}{\text{15}}$

x = 5 $\frac{7}{\text{15}}$

b) = 2 $\frac{1}{3}$ - $\frac{1}{2}$

= 2 $\frac{2}{6}$ - $\frac{3}{6}$

z = 1 $\frac{5}{6}$

4. a) = $\frac{\text{13}}{1}×\frac{5}{6}$

= $\frac{\text{65}}{6}$

t = 10 $\frac{5}{6}$

b) = $\frac{\text{30}}{\text{56}}$

t = $\frac{\text{15}}{\text{28}}$

c) = $\frac{\text{14}}{3}×\frac{\text{19}}{8}$

= $\frac{\text{133}}{\text{12}}$

t = $\text{11}\frac{1}{\text{12}}$

5. a) = 36 35

48 x 50

j = 21

40

6.

a) = $\frac{6}{1}×\frac{2}{5}$

w = $2\frac{2}{5}$

b) = $\frac{7}{9}×\frac{1}{3}$

d = $\frac{7}{\text{27}}$

c) = $\frac{7}{\text{48}}×\frac{\text{12}}{\text{21}}$

a = $\frac{1}{\text{12}}$

d) = $\frac{\text{13}}{4}×\frac{8}{\text{19}}$

= $\frac{\text{26}}{\text{19}}$

g = $1\frac{7}{\text{19}}$

7. a) = $\frac{\text{13}}{2}×\frac{9}{4}$ + 25 b) = $\begin{array}{}\frac{\text{41}}{6}÷\\ \end{array}$ $3\frac{2}{9}$

= $\frac{\text{117}}{8}$ + 25 = $\frac{\text{41}}{6}÷\frac{\text{29}}{9}$

3

= 14 $\frac{1}{4}$ + 25 = $\frac{\text{41}}{6}$  $\frac{9}{\text{29}}$

2

v = 39 $\frac{1}{4}$ = $\frac{\text{123}}{\text{58}}$

= 2 $\frac{7}{\text{58}}$

$\frac{\text{41}}{6}$  $\frac{\text{29}}{9}$

## Aktiwiteit: module toets

1. Vul die ontbrekende antwoorde in:

a) $\frac{\text{.}\text{.}\text{.}}{7}=\frac{\text{24}}{\text{56}}$

b) $\frac{5}{\text{.}\text{.}\text{.}}=\frac{\text{25}}{\text{30}}$

(2)

2. Vul in:<;>of = :

a) $\frac{4}{7}\ast \frac{2}{3}$

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b) $\frac{8}{9}\ast \frac{9}{\text{10}}$

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(2)

3. Bereken:

a) $x=1\frac{2}{3}+3\frac{4}{5}$

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b) $z=6\frac{1}{3}-4\frac{1}{2}$

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(3 × 2 = 6)

4. Bereken die waarde van t:

a) $t=\text{13}×\frac{5}{6}$

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b) $t=\frac{6}{7}×\frac{5}{8}$

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(2 × 2 = 4)

c) $t=4\frac{2}{3}×2\frac{3}{8}$

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(4)

5. Bereken die volgende deur van kansellering gebruik te maak:

a) $j=\frac{\text{36}}{\text{48}}×\frac{\text{35}}{\text{50}}$

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(2)

6. Vind die kwosiënt v.d. volgende:

a) $w=6÷\frac{5}{2}$

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b) $d=\frac{7}{9}÷3$

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(1 × 2 = 2)

c) $a=\frac{7}{\text{48}}÷\frac{\text{21}}{\text{12}}$

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d) $g=3\frac{1}{4}÷2\frac{3}{8}$

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(2 + 3 = 5)

7. Pas die volgorde van bewerkings toe en bereken:

a) $v=6\frac{1}{2}×2\frac{1}{4}+\frac{5}{8}\mathrm{of}\text{40}$

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(4)

b) $b=6\frac{5}{6}÷\left(5\frac{8}{9}-2\frac{2}{3}\right)$

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(4)

(35)

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