Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Mar 28, 2025


Calculate the subtraction of fractions 12/17 and 15/20 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 12/17 and 15/20?

The given fractions are 12/17 and 15/20

Firstly the L.C.M should be done for the denominators of the two fractions 12/17 and 15/20

12/17 - 15/20

The LCM of 17 and 20 (denominators of the fractions) is 340

Given numbers has no common factors except 1. So, there LCM is their product i.e 340


= 12 x 20 - 15 x 17/340

= 240 - 255/340

= -15/340

= -3/68

Result: -3/68

FAQs on Subtraction of Fractions 12/17 and 15/20

1. How do you subtract fractions with different denominators 12/17 and 15/20?

To subtract fractions 12/17 and 15/20 with like/different denominators find the denominators LCM and make both fractions' denominators equal to the LCM of 17 and 20 value i.e 340. After that add numerators and simplify the fraction i.e -3/68.

2. What is 12/17 minus 15/20 as a fraction?

12/17 minus 15/20 as a fraction is equal to -3/68.

3. How to subtract 12/17 and 15/20 on a calculator?

You have to give these numbers 12/17 and 15/20 in the input fields and press the calculate button of the tool to avail the answer -3/68 quickly.