\(\dfrac{17}{20}-\dfrac{3}{5}=\dfrac{17}{20}-\dfrac{12}{20}=\dfrac{5}{20}=\dfrac{1}{4}\)
\(\dfrac{17}{20}-\dfrac{3}{5}=\dfrac{17}{20}-\dfrac{12}{20}=\dfrac{5}{20}=\dfrac{1}{4}\)
\(\dfrac{17}{20}-\dfrac{3}{5}=\dfrac{17-12}{20}=\dfrac{5}{20}=\dfrac{1}{4}\)
17/20 - 3/5 = 17/20 - 3 x4/ 5 x 4= 17-12/ 20=5/20=1/4