35-15 = 20
35/15
15 is 42.86% of 35
15
35 - 27 - 15 = 8 - 15 = -7
15
15 + 35 = 50
35 and a difference of 15 = 50
3/7 of 35 is 15.
Since 15 is less than 35, 15/35 cannot be expressed as an improper fraction.
35/15 = 7/3
Perimeter = 15+15+35+35 = 100 cm