maths

• Multiplying fractions is easier than adding or subtracting them
• Multiplying fractions


  1. Multiply the numerators

  2. Multiply the denominators

  3. Reduce if necessary
• Marginal utility

  The additional utility (satisfaction) gained from the consumption of an additional product
• Negative times a negative is a positive
• 1/2 times negative 1/2 equals negative 1/4
• 2/3 times 1/2 equals 1/3
• 3/7 times 2/5 equals 6/35
• Negative 3/4 times 2/11 equals negative 6/44
• Negative 2/5 times negative 2/5 equals 4/25
• 2/9 times 18/2 equals 2
• 15/21 times 14/5 equals 2
• Multiplying fractions involves multiplying the numerators and denominators
• Reducing fractions can simplify calculations
• Cross-dividing can simplify multiplication
• Multiplying fractions does not require common denominators