Subtract 12/17 and 88/90

12
17
-
88
90
=
-208
765

What is 12/17 - 88/90

12
17
-
88
90
=

In order to make fractions have the same denominator, multiply the numerator and denominator of each fraction by the denominator of the other

12 x 90
17 x 90
-
88 x 17
90 x 17
=
1080
1530
-
1496
1530
=
1080 - 1496
1530
=
-416
1530

OR

(12 x 90) - (88 x 17)
17 x 90
=
-416
1530

Simplify the fraction

Divide each part of the fraction with the greatest common factor to simplify the fraction

-416
1530
=
-416 ÷ 2
1530 ÷ 2
=
-
208
765

Fraction Calculator

📌 Negative signs in fractions

Positive Fractions

-1
-2
=
-
1
-2
=
-
-1
2
=
1
2

Negative Fractions

-1
2
=
1
-2
=
-
-1
-2
=
-
1
2