Maths fractions

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  • Maths
    • Fractions
      • Minus Fractions
        • 5/8 - 1/5 = 25/40-8/40=17/40
      • Add Fractions
        • 2/3 + 1/2=4/6 + 3/6 = 7/6 = 1 1/6
      • Multiply Fractions
        • 4  3/4 x 1 1/3= 19/4 x 4/3 = 76/12 = 19/3 = 6 1/3
        • 8/9 x 3/4 = 24/36= 2/3
      • Mixed Fractions
        • 6 5/8-4 1/3= 2(58 - 1/3)=2 (15/24-8/24)=2 7/24
        • 3 3/4+2 2/3=5(3/4 + 2/3)=5(9/12 + 8/12)=5 17/12 = 6 5/12
    • Compound Interest
      • £1000 frpm a bank at 4% interest a year.How much after 3 Years?
        • 1000 x 1.04=1040 (one year)
          • 1040 x 1.04=1081.60( two years)
            • 1081.60 x 1.04=1124.86 (3 years)
      • Appreciation: Go up in Value.
        • Depreciation: Go down in value.
    • Area+Volume
      • Area of a Kite/Rhombus= 1/2x B x H
      • Area of a  triangle- 1/2 B x H
      • Volume of a cuboid= LxBxH
      • Area of a parraellogram-B x H
      • Volume of a prism-Area of face x height
      • Volume of a sphere- 4/3
      • Volume of a pyramid- area of b x h divided by 3
      • Volume of a cylinder-          h
      • Volume of a cone. 1/3 x
    • Inequalities
      • 9d-5>13  =plus 5 to each side and it becomes 9d>18 d>2
    • Equations
      • 3a+1=22    Minus 1 from each side. 3a=32 a=7
  • Appreciation: Go up in Value.
    • Depreciation: Go down in value.

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