Home / iGCSE Mathematics (0580) :E1.8 Use the four rules for calculations with whole numbers, decimals and fractions (including mixed numbers and improper fractions), including correct ordering of operations and use of brackets. iGCSE Style Questions Paper 2

iGCSE Mathematics (0580) :E1.8 Use the four rules for calculations with whole numbers, decimals and fractions (including mixed numbers and improper fractions), including correct ordering of operations and use of brackets. iGCSE Style Questions Paper 2

Question

Without using your calculator, work out \(1\frac{5}{6}+\frac{9}{10}.\)

You must show your working and give your answer as a mixed number in its simplest form.

Answer/Explanation

Ans: \(\frac{55}{30}+\frac{27}{30}oe or (1)\frac{25}{30}+\frac{27}{30}oe\frac{82}{30}oe or(1)\frac{52}{30}oe2\frac{11}{15}\) M2 must be scored

Question

 Write as a single fraction in its simplest form.
\(3 – \frac{t+2}{t-1}\)

Answer/Explanation

Ans:

\(\frac{2t-5}{t-1}\) final answer

Question

Give each answer as a fraction in its lowest terms.
Work out.
(a) \(\frac{3}{4} – \frac{1}{12}\)
(b) \(2 \frac{1}{2} \times \frac{4}{25}\)

Answer/Explanation

Ans:

(a) \(\frac{9}{12} – \frac{1}{12}\) oe
\([=]\frac{8}{12}\) oe \([=] \frac{2}{3}\)

(b) \(\frac{5}{2} \times \frac{4}{25}\) oe
Cancelling shown or \(\frac{21}{50}\) oe \([=]\frac{2}{5}\)

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