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Fraction Calculator
Below are multiple fraction calculators capable of addition, subtraction, multiplication, division, simplification, and conversion between fractions and decimals. Fields above the solid black line represent the numerator, while fields below represent the denominator.
Fraction Calculator
Numerator
Denominator
Numerator
Denominator
Mixed Fraction Calculator
Simplify Fractions Calculator
Fraction to Decimal Calculator
Fraction Calculator:
2/7 + 3/8 ?
The Least Common Multiple (LCM) of 7 and 8 is 56. Multiply the numerator and denominator of each fraction by whatever value will result in the denominator of each fraction being equal to the LCM:
(2 × 8)/(7 × 8) + (3 × 7)/(8 × 7) =16/56 + 21/56
Now that the fractions have like denominators, add the numerators:
(16 + 21)/56 = 37/56
The result is:
2/7 + 3/8 = 37/56
Mixed Numbers Calculator
-2(3/4) + 3(5/7) = ?
Combine the whole numbers and fractions together:
(-2 + 3) + (-3/4 + 5/7)
The whole numbers part is:
-2 + 3 = 1
For the fractions part:
The Least Common Multiple (LCM) of 4 and 7 is 28. Multiply the numerator and denominator of each fraction by whatever value will result in the denominator of each fraction being equal to the LCM:
(-3/4 + 5/7) = -21/28 + 20/28
Now that the fractions have like denominators, add the numerators:
-21/28 + 20/28 = -1/28
Put the whole number and fraction together:
1 + (-1/28) =27/28
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