Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Mar 28, 2025


Calculate the subtraction of fractions 18/4 and 12/5 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 18/4 and 12/5?

The given fractions are 18/4 and 12/5

Firstly the L.C.M should be done for the denominators of the two fractions 18/4 and 12/5

18/4 - 12/5

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


= 18 x 5 - 12 x 4/20

= 90 - 48/20

= 42/20

= 21/10

Result: 21/10

FAQs on Subtraction of Fractions 18/4 and 12/5

1. How do you subtract fractions with different denominators 18/4 and 12/5?

To subtract fractions 18/4 and 12/5 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 21/10.

2. What is 18/4 minus 12/5 as a fraction?

18/4 minus 12/5 as a fraction is equal to 21/10.

3. How to subtract 18/4 and 12/5 on a calculator?

You have to give these numbers 18/4 and 12/5 in the input fields and press the calculate button of the tool to avail the answer 21/10 quickly.