Adding Fractions Calculator

The Adding Fractions Calculator computes a/b + c/d from 4 inputs: num 1, den 1, num 2, den 2. Add and subtract fractions with positive and negative numbers.

Mathematics shows up in every corner of daily life — budgeting, cooking, construction, engineering, even reading a bus schedule. A calculator like this lets you skip the scratch-paper step and move straight to the answer, without the arithmetic mistakes that creep in when the numbers get messy. The Adding Fractions Calculator sits in that toolkit — it add and subtract fractions with positive and negative numbers. Enter your numbers above and the result updates instantly; every step of the math is shown in the Derivation panel so you can see exactly how the answer was reached.

Where

a

Num 1

b

Den 1

c

Num 2

d

Den 2

1. 01Start by noting the input — Num 1: 1.
2. 02Start by noting the input — Den 1: 2.
3. 03Start by noting the input — Num 2: 1.
4. 04Start by noting the input — Den 2: 3.
5. 05Substitute these values into the formula: {let t=e.a,a=e.b,n=e.c,r=e.d;const o=Gs(t × r+n × a,a × r),i=(0,l.A)(o,2),c=i[0],s=i[1];return"".concat(c," / ").concat(s)}
6. 06Compute a/b + c/d: the calculator returns 5/6.
7. 07Cross-check the answer by opening the Derivation panel above — every line of math is shown so you can follow the computation end-to-end.