Question

which ratio is greater 2.5:7.5 or 3.2:5.2​

Answer 1

$2.5:7.5 \: \: or \: \: 3.2:5.2 \\ \\ = \frac{2.5}{7.5} \: \: \: \: \: \: \: = \frac{3.2}{5.2} \\ \\ = 3 \: \: \: \: \: \: \: \: \: \: = 1.625 \\ \\ = 3 > 1.625$

Answer 2

2.5/7.5 = 2.5/7.5

= 25/75 = 1/3

3.2/5.2 = 3.2/7.2

= 32/72

= 4/9

Making them equal:

LCM = 9

1/3 1 × 3/ 3 × 3

= 3/9

4/9 will remain as it is.

Now, it is quiet visible that 3/9 < 4/9

So 3.2/5.2 > 2.5/7.5