To convert, multiply the whole number by the denominator and add the numerator.
Reduce the fraction to its simplest form by dividing both the numerator and denominator by their greatest common factor (GCF). Example: 3153 over 15 end-fraction can be simplified to 15one-fifth by dividing both by 3. Special Cases how to multiply fractions
The standard algorithm for multiplying fractions involves three primary steps: To convert, multiply the whole number by the
Multiply the top numbers of each fraction together. This result becomes the new numerator. Example: For , calculate : You must convert mixed numbers into improper
: Treat whole numbers as fractions with a denominator of 1 (e.g., ) before following the standard steps.
: You must convert mixed numbers into improper fractions before multiplying.
To multiply fractions, you simply multiply the numerators (top numbers) together and the denominators (bottom numbers) together. Unlike addition or subtraction, you do need a common denominator to multiply fractions. The Multi-Step Procedure