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Use + - * / ^ ( ) and % for remainder. Multiplication and division are done before addition and subtraction. In "words" mode, type the sum in plain English instead.
Name a value the expression may use, e.g. "l = 12, w = 7" with an expression of 2 * (l + w).
Result
435
Basic Arithmetic Calculator
Unrounded result
435
Expression evaluated
4.35 * 100
Result with separators
435.00
Result as a fraction
435
Operation
Expression
Arithmetic used
Exact fractions
Worked out from ISO 80000-2, Quantities and units — Part 2: Mathematics (operator symbols and precedence) and 3 other sources.

How this is worked out

3 steps
  1. Evaluate 4.35 × 100 in exact fraction arithmetic.
  2. 87/20 × 100 = 435
  3. In binary floating point the same expression gives 434.99999999999994; the exact value is 435 = 435.
Step-by-step workingtable
87/20 × 100 = 435

Results are general information, not financial, tax, legal, medical or engineering advice.