Subtract 100/87 and 65/12

100
87
-
65
12
=
-4
31
116

What is 100/87 - 65/12

100
87
-
65
12
=

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

100 x 12
87 x 12
-
65 x 87
12 x 87
=
1200
1044
-
5655
1044
=
1200 - 5655
1044
=
-4455
1044

OR

(100 x 12) - (65 x 87)
87 x 12
=
-4455
1044

Simplify the fraction

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

-4455
1044
=
-4455 ÷ 9
1044 ÷ 9
=
-
495
116

Because the numerator greater than the denominator, so we have an improper fraction, which means we can simplify it by converting the improper fraction to a mixed number.

Improper fraction to mixed number, get the whole number by dividing the numerator with the denominator, then subtract the numerator by the whole number multiplied by the denominator.

-
495
116
=
495 ÷ 116 = 4 +
495 - (4 x 116)
116
=
-4
31
116

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