Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Mar 28, 2025


Calculate the subtraction of fractions 5/4 and 18/5 with the help of the handy tool Subtraction of Fractions Calculator and get the detailed step-by-step answer.




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How do you Subtract Fractions 5/4 and 18/5?

The given fractions are 5/4 and 18/5

Firstly the L.C.M should be done for the denominators of the two fractions 5/4 and 18/5

5/4 - 18/5

The LCM of 4 and 5 (denominators of the fractions) is 20

Given numbers has no common factors except 1. So, there LCM is their product i.e 20


= 5 x 5 - 18 x 4/20

= 25 - 72/20

= -47/20

Result: -47/20

FAQs on Subtraction of Fractions 5/4 and 18/5

1. How do you subtract fractions with different denominators 5/4 and 18/5?

To subtract fractions 5/4 and 18/5 with like/different denominators find the denominators LCM and make both fractions' denominators equal to the LCM of 4 and 5 value i.e 20. After that add numerators and simplify the fraction i.e -47/20.

2. What is 5/4 minus 18/5 as a fraction?

5/4 minus 18/5 as a fraction is equal to -47/20.

3. How to subtract 5/4 and 18/5 on a calculator?

You have to give these numbers 5/4 and 18/5 in the input fields and press the calculate button of the tool to avail the answer -47/20 quickly.