Answer:
Step-by-step explanation:
Given
← divide numerator/ denominator by 4 ( the LCM of 20 and 24 )
= ← in simplest form
81cm
15cm + 20cm + 21cm + 25cm = 81cm
105
x5.6
0630
+5250=
5880
Then add a decimal point
588.0
588
hope it helps!