Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : Mar 28, 2025


Calculate the subtraction of fractions 3/7 and 15/9 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 3/7 and 15/9?

The given fractions are 3/7 and 15/9

Firstly the L.C.M should be done for the denominators of the two fractions 3/7 and 15/9

3/7 - 15/9

The LCM of 7 and 9 (denominators of the fractions) is 63

Given numbers has no common factors except 1. So, there LCM is their product i.e 63


= 3 x 9 - 15 x 7/63

= 27 - 105/63

= -78/63

= -26/21

Result: -26/21

FAQs on Subtraction of Fractions 3/7 and 15/9

1. How do you subtract fractions with different denominators 3/7 and 15/9?

To subtract fractions 3/7 and 15/9 with like/different denominators find the denominators LCM and make both fractions' denominators equal to the LCM of 7 and 9 value i.e 63. After that add numerators and simplify the fraction i.e -26/21.

2. What is 3/7 minus 15/9 as a fraction?

3/7 minus 15/9 as a fraction is equal to -26/21.

3. How to subtract 3/7 and 15/9 on a calculator?

You have to give these numbers 3/7 and 15/9 in the input fields and press the calculate button of the tool to avail the answer -26/21 quickly.