Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Mar 28, 2025


Calculate the subtraction of fractions 15/3 and 17/7 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 15/3 and 17/7?

The given fractions are 15/3 and 17/7

Firstly the L.C.M should be done for the denominators of the two fractions 15/3 and 17/7

15/3 - 17/7

The LCM of 3 and 7 (denominators of the fractions) is 21

Given numbers has no common factors except 1. So, there LCM is their product i.e 21


= 15 x 7 - 17 x 3/21

= 105 - 51/21

= 54/21

= 18/7

Result: 18/7

FAQs on Subtraction of Fractions 15/3 and 17/7

1. How do you subtract fractions with different denominators 15/3 and 17/7?

To subtract fractions 15/3 and 17/7 with like/different denominators find the denominators LCM and make both fractions' denominators equal to the LCM of 3 and 7 value i.e 21. After that add numerators and simplify the fraction i.e 18/7.

2. What is 15/3 minus 17/7 as a fraction?

15/3 minus 17/7 as a fraction is equal to 18/7.

3. How to subtract 15/3 and 17/7 on a calculator?

You have to give these numbers 15/3 and 17/7 in the input fields and press the calculate button of the tool to avail the answer 18/7 quickly.