Answer:
Step-by-step explanation:
Step: 1: Convert mixed fraction to improepr fraction.
Step: 2 : Find the LCM of 4 , 5 = 20
Step 3: Find equivalent fractions with denominator as 20
Step 4: Now subtract.
[tex]3\dfrac{1}{4}-1\dfrac{3}{5}=\dfrac{13}{4}-\dfrac{8}{5}[/tex]
[tex]\sf = \dfrac{13*5}{4*5}-\dfrac{8*4}{5*4}\\\\\\ = \dfrac{65}{20}-\dfrac{32}{20}\\\\\\ = \dfrac{65-32}{20}\\\\\\ = \dfrac{33}{20}\\\\ \\ = 1 \dfrac{13}{20}[/tex]
