Converting fractions with technology | Maths | Quizalize & Oak National Academy

Starter quiz

Complete the statement. A factor is a ______ which exactly divides another ______.

'term' ✓
Select all the fractions that simplify to $5 \over 8$ .

$8\over 12$

$15\over 26$

$10\over 16$ ✓

$15\over 32$

$25\over 40$ ✓
Which of the following factors of 48 and 180 is the best choice to efficiently simplify $48\over180$ ?

3

6

12 ✓

15
Write 360 as a product of prime factors.

$2^2 \times 3^2 \times 5$

$2^3 \times 3^2 \times 5$ ✓

$2^2 \times 3^3 \times 5$

$2^2 \times 3^2 \times 5^2$
Which of these fractions is equivalent to $1080 \over 2100$

$\frac{2^2 \times 3^2 \times 5}{2^2 \times 5^2 \times 7}$

$\frac{2^3 \times 3^2 \times 5}{2^2 \times 5 \times 7}$

$\frac{2^3 \times 3^2 \times 5^2}{2^2 \times 5^2 \times 7^2}$

$\frac{2^3 \times 3^2 \times 5}{2^2 \times 5^2 \times 7}$

$\frac{2^3 \times 3^3 \times 5}{2^2 \times 3 \times 5^2 \times 7}$ ✓
Match each fraction to its simplified equivalent fraction.

$84\over210$

⇔

$2\over5$ ✓

$48\over210$

⇔

$8\over35$ ✓

$48\over84$

⇔

$4\over7$ ✓

$84\over48$

⇔

$1 \frac{3}{4}$ ✓

Using a calculator, calculate the simplified fraction of $96 \over 90$ .

$48 \over 45$

$32 \over 30$

$16 \over 15$ ✓

$24 \over 22$
Using a calculator, work out the answer to ${16 \over 15} \times 315$ .

21

294

336 ✓

5040
Sam's calculator gives an answer as a fraction. What is the name of the key that should be pressed first on the Casio fx-991CW in order to convert this fraction to a decimal?

'format' ✓
Using a calculator, match the decimal to the equivalent fraction.

0.77

⇔

$77 \over 100$ ✓

0.972

⇔

$243 \over 250$ ✓

3.294

⇔

$1647 \over 500$ ✓

3.924

⇔

$981 \over 250$ ✓
The format key on the Casio fx-991CW only allows you to change a decimal to an improper fraction.

True
False ✓
Using your calculator, find the answer to ${4 \over 19} \times {26 \over 62}$

0.0882852

0.08828522

0.088285229

0.0882852292 ✓

0.08828522922

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A calculator can be used to simplify fractions.
A calculator can be used to convert fractions to decimals by dividing.
A calculator can be used to convert fractions to decimals by using the appropriate key.
A calculator can be used to convert a decimal to a fraction by using the appropriate key.

The calculator rounds recurring/non-terminating decimals to 10 d.p. and it is not terminating.

The fractional form will give a clearer idea if the decimal equivalent is terminating or not.

Proper fraction - A proper fraction is a fraction where the numerator is less than the denominator.
Improper fraction - An improper fraction is a fraction where the numerator is greater than or equal to the denominator.
Mixed number - A mixed number is an improper fraction written as its integer part plus the fractional part where the fractional part is a proper fraction.