Welcome to the Fraction Plus What Equals Fraction Calculator. This calculator calculates "what" in this sentence: "a/b plus what equals c/d?", where a/b and c/d are fractions that you enter.

Please submit your "a/b plus what equals c/d?" word problem below so we can show you how to solve it using algebra.

Here are some examples of what our Fraction Plus What Equals Fraction Calculator can answer:

**1/2 plus what equals 3/4?**

**1/3 plus what equals 1/5?**

**2/5 plus what equals 3/4?**

**3/4 plus what equals 4/5?**

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