Question

Gabriel measured the length of two icicles hanging from his porch. The first icicle was 30 centimeters 3 millimeters and the second icicle was 15 centimeters 9 millimeters. How much longer is the first icicle than the second icicle?

a:15 centimeters 4 millimeters
b:15 centimeters 6 millimeters
c:14 centimeters 6 millimeters
d:14 centimeters 4 millimeters

Answer 1

30.3 - 15.9

then write as centimeters and millimeters