# Multiply fractions: - 252/14 × - 9/21 = ? Multiplication result of the ordinary (simple, common) fractions explained

## The latest fractions multiplied

 - 252/14 × - 9/21 = ? Jun 21 05:02 UTC (GMT) 29/14 × - 40/9 = ? Jun 21 05:02 UTC (GMT) - 7/18 × - 79/8 = ? Jun 21 05:02 UTC (GMT) 115/30 × - 604/24 = ? Jun 21 05:02 UTC (GMT) 202/32 × - 74/22 × 3,819/10 × - 8,974/19 × - 77/18 × 72/27 × 72/19 × 40/136 = ? Jun 21 05:02 UTC (GMT) 748/17 × 27/33 = ? Jun 21 05:02 UTC (GMT) - 32/15 × 30,026/22 = ? Jun 21 05:02 UTC (GMT) 4/15 × 45 = ? Jun 21 05:02 UTC (GMT) 54/72 × 19/13 = ? Jun 21 05:02 UTC (GMT) - 21/15 × - 4,748/14 × - 2,271/15 × 9,479/5 × 9,481/11 × - 15/51 × - 13/14 = ? Jun 21 05:02 UTC (GMT) - 7/18 × - 79/8 = ? Jun 21 05:02 UTC (GMT) - 83/107 × 20/37 × - 50/4 × 46/3 × 49/8 × - 44/7 = ? Jun 21 05:02 UTC (GMT) 9/13 × 23/5 = ? Jun 21 05:02 UTC (GMT) see more... ordinary (common) fractions multiplied by users

## How to multiply two fractions?

#### When we multiply ordinary fractions, the end fraction will have:

• as a numerator, the result of multiplying all the numerators of the fractions,
• as a denominator, the result of multiplying all the denominators of the fractions.
• a/b × c/d = (a × c) / (b × d)
• a, b, c, d are integer numbers;
• if the pairs (a × c) and (b × d) are not coprime (they have common prime factors) the end fraction should be reduced (simplified) to lower terms.

### How to multiply ordinary fractions? Steps.

• Start by reducing fractions to lower terms (simplifying).
• Reduce math fractions to lower terms, online, with explanations.
• Factor the numerators and the denominators of the reduced fractions: break them down to their prime factors.
• Calculate the prime factors of numbers, online calculator
• Above the fraction bar we write the product of all the prime factors of the fractions' numerators, without doing any calculations.
• Below the fraction bar we write the product of all the prime factors of the fractions' denominators, without doing any calculations.
• Cross out all the common prime factors that appear both above and below the fraction bar.
• Multiply the remaining prime factors above the fraction bar - this will be the numerator of the resulted fraction.
• Multiply the remaining prime factors below the fraction bar - this will be the denominator of the resulted fraction.
• There is no need to reduce (simplify) the resulting fraction, since we have already crossed out all the common prime factors.
• If the resulted fraction is an improper one (without considering the sign, the numerator is larger than the denominator), it could be written as a mixed number, consisting of an integer and a proper fraction of the same sign.
• Write improper fractions as mixed numbers, online.
• Multiply ordinary fractions, online, with explanations.