Question

write the ratio as a fraction in simplest form with whole numbers in the 3.5 to 4.2

Answer 1

$\frac{3.5}{4.2} \times \frac{10}{10} = \frac{35}{42} = \frac{7\times 5}{7\times 6} \\\\ = \boxed{\bf{\frac{5}{6}}}$