Fraction calculator



This fraction calculator performs all fraction operations - addition, subtraction, multiplication, division and evaluates expressions with fractions. It also shows detailed step-by-step information.

The result:

35 - 23 1/10 = 119/10 = 11 9/10 = 11.9

The result spelled out in words is one hundred nineteen tenths (or eleven and nine tenths).

How do we solve fractions step by step?

  1. Conversion a mixed number 23 1/10 to a improper fraction: 23 1/10 = 23 1/10 = 23 · 10 + 1/10 = 230 + 1/10 = 231/10

    To find a new numerator:
    a) Multiply the whole number 23 by the denominator 10. Whole number 23 equally 23 * 10/10 = 230/10
    b) Add the answer from the previous step 230 to the numerator 1. New numerator is 230 + 1 = 231
    c) Write a previous answer (new numerator 231) over the denominator 10.

    Twenty-three and one tenth is two hundred thirty-one tenths.
  2. Subtract: 35 - 231/10 = 35/1 - 231/10 = 35 · 10/1 · 10 - 231/10 = 350/10 - 231/10 = 350 - 231/10 = 119/10
    The first operand is an integer. It is equivalent to a fraction 35/1. It is suitable to adjust both fractions to a common (equal) denominator for subtracting fractions. The common denominator you can calculate as the least common multiple of both denominators - LCM(1, 10) = 10. It is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 1 × 10 = 10. In the following intermediate step, it cannot further simplify the fraction result by canceling.
    In other words, thirty-five minus two hundred thirty-one tenths equals one hundred nineteen tenths.

Rules for expressions with fractions:

Fractions - write a forward slash to separate the numerator and the denominator, i.e., for five-hundredths, enter 5/100. If you use mixed numbers, leave a space between the whole and fraction parts.

Mixed numerals (mixed numbers or fractions) - keep one space between the whole part and fraction and use a forward slash to input fraction i.e., 1 2/3 . A negative mixed fraction write for example as -5 1/2.
A slash is both a sign for fraction line and division, use a colon (:) for division fractions i.e., 1/2 : 1/3.
Decimals (decimal numbers) enter with a decimal dot . and they are automatically converted to fractions - i.e. 1.45.


Math Symbols


SymbolSymbol nameSymbol MeaningExample
+plus signaddition 1/2 + 1/3
-minus signsubtraction 1 1/2 - 2/3
*asteriskmultiplication 2/3 * 3/4
×times signmultiplication 2/3 × 5/6
:division signdivision 1/2 : 3
/division slashdivision 1/3 / 5
:coloncomplex fraction 1/2 : 1/3
^caretexponentiation / power 1/4^3
()parenthesescalculate expression inside first-3/5 - (-1/4)


The calculator follows well-known rules for the order of operations. The most common mnemonics for remembering this order are:
  • PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
  • BEDMAS: Brackets, Exponents, Division, Multiplication, Addition, Subtraction.
  • BODMAS: Brackets, Order (or "Of"), Division, Multiplication, Addition, Subtraction.
  • GEMDAS: Grouping symbols (brackets: `(){}`), Exponents, Multiplication, Division, Addition, Subtraction.
  • MDAS: Multiplication and Division (same precedence), Addition and Subtraction (same precedence). MDAS is a subset of PEMDAS.
Important Notes:
1. Multiplication/Division vs. Addition/Subtraction: Always perform multiplication and division *before* addition and subtraction.
2. Left-to-Right Rule: Operators with the same precedence (e.g., `+` and `-`, or `*` and `/`) must be evaluated from left to right.

Last Modified: April 16, 2025