26 1/4- 5 3/10

26=104/4

26 1/4=(104/4)+1/4=105/4 multiply with 5 and divide vith 5

26 1/4=105/4=525/20

5 3/10=(50/10)+3/10=53/10 multiply with 2 and divide vith 2

5 3/10=53/10=106/20

26 1/4- 5 3/10 =(525/20)-(106/20)=419/20
=(400/20)+(19/20)=20+19/20

26 1/4- 5 3/10 =20 19/20