operations with fractions
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arithmetic and fractions
summary
the content provides a comprehensive guide on performing basic arithmetic operations with fractions, crucial for gre exam preparation. it covers addition, subtraction, multiplication, and division of fractions, emphasizing the importance of finding common denominators, the ease of multiplication, and strategies for division.
- addition and subtraction of fractions require a common denominator, and the guide offers strategies for finding equivalent fractions to facilitate this.
- multiplication of fractions is straightforward, involving cross-multiplication of numerators and denominators, with a strong recommendation to cancel common factors before multiplying to simplify calculations.
- division of fractions involves multiplying by the reciprocal of the divisor, with specific methods outlined for dividing a whole number by a fraction and vice versa.
- the guide highlights the importance of understanding and applying the least common multiple for addition and subtraction, and the benefit of cancellation in multiplication to manage larger numbers efficiently.
- practice problems are provided to reinforce the concepts discussed, with solutions offered to enable self-assessment and learning.
chapters
00:00
mastering fraction addition and subtraction
04:22
simplifying fraction multiplication
06:20
efficient strategies for fraction division
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