Best shown with an example.
2 2/3 X 4 1/5
#1 Convert to improper(top heavy) fractions.
8/3 X 21/5
#2 cancel down (reduce) were possible. In this case by '3'
8/1 X 7/5
#3 multiply the numerators(top) and multply the denomiaotor(bottom) and place the numerator over the denomiator
56/ 5
#4 Convert to a mixed fraction
11 1/5 The answer. !!!
Hope that helps!!!!
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To multiply fractions, multiply the numerators by the numerators, and the denominators by the denominators, and then (if possible) simplify the resulting fraction. For example, 2/3 x 4/5 = 8/15
When doing fractions, you may cross multiply.
U can multiply
To multiply fractions all you do is multiply the numerators and the denominators separately eg: 4/7 x 6/11 = 24/77. The "commonality" of denominators has no relevance.
To divide fractions, turn the second one over - that is, swap its numerator and denominator - and multiply. Nothing else is necessary. You cross multiply when you have a proportion, that is when you have two ratios that are equal.
This has the effect of producing a denominator in the answer that has each of the original denominators as factors. You don't have to worry about simplifying the fractions before multiplying. Of course, you may have to simplify after multiplying. There's no way out.