Multiply the following fractions: (i) 5/28 x 7 (ii) 20/21 x 7/10 x 1/2 (iii) 4/5 x 11/16 x 5/8 (iv) 17/24 x 3/6 x 6/7 (v) 5/9 x 5/12 x 24/25 (vi) 4/5 x 1 6/7 x 0 (vii) 1/4 x 2 1/2 x 4/5

$$\frac{35 \div 7}{28 \div 7} = \frac{5}{4}$$

i) $\boxed{\frac{5}{4}}$

ii) $\frac{20}{21} \times \frac{7}{10} \times \frac{1}{2}$

$$\frac{1 \times 1 \times 1}{21 \times 1 \times 1} = \frac{1}{21}$$

ii) $\boxed{\frac{1}{21}}$

iii) $\frac{4}{5} \times \frac{11}{16} \times \frac{5}{8}$

$$\frac{1 \times 11 \times 1}{1 \times 4 \times 8} = \frac{11}{32}$$

iii) $\boxed{\frac{11}{32}}$

iv) $\frac{17}{24} \times \frac{3}{34} \times \frac{6}{7}$

$$\frac{1 \times 1 \times 3}{4 \times 1 \times 7} = \frac{3}{28}$$

iv) $\boxed{\frac{3}{28}}$

v) $\frac{5}{9} \times \frac{5}{12} \times \frac{24}{25}$

$$\frac{1 \times 1 \times 2}{9 \times 1 \times 1} = \frac{2}{9}$$

v) $\boxed{\frac{2}{9}}$

vi) $\frac{4}{5} \times 1\frac{6}{7} \times 0$

$$\frac{4}{5} \times 1\frac{6}{7} \times 0 = 0$$

vi) $\boxed{0}$

vii) $\frac{1}{4} \times 2\frac{1}{2} \times 3\frac{1}{2} \times \frac{4}{5}$

$$2\frac{1}{2} = \frac{2 \times 2 + 1}{2} = \frac{5}{2}$$ $$3\frac{1}{2} = \frac{3 \times 2 + 1}{2} = \frac{7}{2}$$

$$\frac{1 \times 1 \times 7 \times 1}{1 \times 2 \times 2 \times 1} = \frac{7}{4}$$

vii) $\boxed{\frac{7}{4}}$