Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Mar 28, 2025


Calculate the subtraction of fractions 17/10 and 9/20 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 17/10 and 9/20?

The given fractions are 17/10 and 9/20

Firstly the L.C.M should be done for the denominators of the two fractions 17/10 and 9/20

17/10 - 9/20

The LCM of 10 and 20 (denominators of the fractions) is 20
2 10, 20
5 5, 10
1, 2

So the lcm of the given numbers is 2 x 5 x 1 x 2 = 20


= 17 x 2 - 9 x 1/20

= 34 - 9/20

= 25/20

= 5/4

Result: 5/4

FAQs on Subtraction of Fractions 17/10 and 9/20

1. How do you subtract fractions with different denominators 17/10 and 9/20?

To subtract fractions 17/10 and 9/20 with like/different denominators find the denominators LCM and make both fractions' denominators equal to the LCM of 10 and 20 value i.e 20. After that add numerators and simplify the fraction i.e 5/4.

2. What is 17/10 minus 9/20 as a fraction?

17/10 minus 9/20 as a fraction is equal to 5/4.

3. How to subtract 17/10 and 9/20 on a calculator?

You have to give these numbers 17/10 and 9/20 in the input fields and press the calculate button of the tool to avail the answer 5/4 quickly.