Question

1/7 times x = 1 5/4 times x=1 3 1/2 times x=1 5/7 times x=1

Answer 1

( i )

$= > \frac{1}{7} \times x = 1 \\ \\ \\ \\ = > \frac{1}{7} \times 7 \times x = 1 \times 7 \\ \\ \\ \\ = > x = 7$



( ii ) :


$= > \frac{5}{4} \times x = 1 \\ \\ \\ \\ = > \frac{5}{4} \times \frac{4}{5} \times x = 1 \times \frac{4}{5} \\ \\ \\ \\ = > x = \frac{4}{5}$



( iii ) :


$= > 3\frac{1}{2} \times x = 1 \\ \\ \\ \\ = > \frac{7}{2} \times x = 1 \\ \\ \\ \\ = > \frac{7}{2} \times \frac{2}{7} \times x = 1 \times \frac{2}{7} \\ \\ \\ \\ = > x = \frac{2}{7}$



( iv ) :


$\frac{5}{7} \times x = 1 \\ \\ \\ \\ = > \frac{5}{7} \times \frac{7}{5} \times x = 1 \times \frac{7}{5} \\ \\ \\ \\ = > x = \frac{7}{5}$