Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Mar 28, 2025


Calculate the subtraction of fractions 20/18 and 10/8 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 20/18 and 10/8?

The given fractions are 20/18 and 10/8

Firstly the L.C.M should be done for the denominators of the two fractions 20/18 and 10/8

20/18 - 10/8

The LCM of 18 and 8 (denominators of the fractions) is 72
2 18, 8
9, 4

So the lcm of the given numbers is 2 x 9 x 4 = 72


= 20 x 4 - 10 x 9/72

= 80 - 90/72

= -10/72

= -5/36

Result: -5/36

FAQs on Subtraction of Fractions 20/18 and 10/8

1. How do you subtract fractions with different denominators 20/18 and 10/8?

To subtract fractions 20/18 and 10/8 with like/different denominators find the denominators LCM and make both fractions' denominators equal to the LCM of 18 and 8 value i.e 72. After that add numerators and simplify the fraction i.e -5/36.

2. What is 20/18 minus 10/8 as a fraction?

20/18 minus 10/8 as a fraction is equal to -5/36.

3. How to subtract 20/18 and 10/8 on a calculator?

You have to give these numbers 20/18 and 10/8 in the input fields and press the calculate button of the tool to avail the answer -5/36 quickly.