Question

check if 42, 54, 63, 81 are in proportion (explain)​

Answer 1

Step-by-step explanation:

$\frac{42}{54} = \frac{63}{81}$

$\frac{42}{54} \div 2 = \frac{21}{27} \div 3 = \frac{7}{9}$

$\frac{63}{81} \div 3 = \frac{21}{27} \div 3 = \frac{7}{9}$

$\frac{7}{9} = \frac{7}{9}$

$\frac{42}{54} = \frac{63}{81}$

therefore 42,54,63,81 are in proportion