How are 198:1,287 and 2:13 equivalent ratios

Expressing 198 : 1287 in its simplest form, gives the value 2 :13 ; Hence, the two ratio expressions are equivalent.

In other to determine if 198:1,287 and 2:13 are equivalent ratios ;

Dividing both values by 99 ;

198 : 1287 = 2 : 13

Since, the ratio 198 : 1287 simplified to its lowest term equals 2 : 13 ; then both ratios are equivalent.

Learn more : link