Fractions, decimals and percentages

Cards (9)

  • 5/10+3/5=

    Convert them both to the same denominator

    5/10+6/10= 11/10 or do the butterfly method where you do horizontal 5x5=25. 3x10=30. 30+25=55 then x the bottom fractions 10x5 =50 55/10 simplifys to 11/10
  • 5/2 x 4/3
    To times fractions just multiply the numerators and the denominators 20/6
  • 3/5 ÷ 1/2 =
    3x2=6 and 5x1=5 therefore the answer is 6/5 as you do kfc keep first fraction, flip second fraction, change the divide to a times
  • What is 0.04 as a percentage
    what is 0.4 as a percentage
    0.04=4%
    0.4=40%
  • Fractions hack
  • How to work out a fraction of an amount
  • The top number (numerator) tells us how many equal parts we have, while the bottom number (denominator) tells us how many equal parts make up the whole.
  • Find the value of the reciprocal of 0.8
    To find the reciprocal of a number, you divide 1 by that number. 1/0.8=1.25
  • x = 4700 correct to 2 significant figures. (b) Complete the error interval for x. ............................ < x < ............................
    4650≤x<4750