Edexcel IGCSE Math A 1.2.D fraction ordering and quantities

Practise fraction-order questions by converting to common forms, shading shapes and calculating parts or leftovers from totals.

Exam points

Compare fractions by converting them to decimals or to a common denominator.
Shade the correct fraction of a divided shape from the diagram grid accurately.
Calculate a fraction of a quantity, including leftover or total amounts in context.

[Maximum number: 4]

A box contains only
9 red bricks
43 blue bricks and some yellow bricks
$\frac{7}{20}$ of the bricks are yellow bricks.
Each brick weighs 35 grams.
Work out the total weight of the yellow bricks.
grams

Not yellow:
9+43=52 $\frac{13}{20}\text{ of the bricks}=52 \quad\Rightarrow\quad \text{total}=80$
Yellow bricks:
80-52=28
Weight:
$28\times35=980$

Final answer:
$980\text{ g}$

M1 for a correct first step, such as $1-\frac7{20}=\frac{13}{20}$ or using the ratio 7:13. M1 for finding the number of yellow bricks. A1 for 980 g.

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1.2.D Ordering fractions and fractions of quantities question 1