Decimal number multiplication calculator that shows work to convert given decimal to fraction number. The step-by-step calculation help parents to assist their kids studying 4th, 5th or 6th grade to verify the work and answers of multiplying decimals by 2, 3, 4, 5 or 6 digit whole number homework and assignment problems in pre-algebra or in number system (NS) of common core state standards (CCSS) for mathematics.