Useful Fractions & Percentages

Question 1

Answer 1

50% = 0.5

(Tip: Look for multiples of 1/2 in more complex fractions.)

Question 2

Answer 2

33.3…% = 0.333…

(Tip: Look for multiples of 1/3 in more complex fractions.)

Question 3

Answer 3

66.6…% = 0.666…

(Tip: Since 1/3 = 33.3…% = 0.333…, 2/3 is simply 2x that amount.)

Question 4

Answer 4

25 % = 0.25

(Tip: Look for multiples of 1/4 in more complex fractions.)

Question 5

Answer 5

50 % = 0.5

(Tip: Since 1/4 = 25% = 0.25, 2/4 is simply 2x that amount.)

Question 6

Answer 6

75 % = 0.75

(Tip: Since 1/4 = 25% = 0.25, 3/4 is simply 3x that amount.)

Question 7

Answer 7

20 % = 0.2

(Tip: Look for multiples of 1/5 in more complex fractions.)

Question 8

Answer 8

40 % = 0.4

(Tip: Since 1/5 = 20% = 0.2, 2/5 is simply 2x that amount.)

Question 9

Answer 9

60 % = 0.6

(Tip: Since 1/5 = 20% = 0.2, 3/5 is simply 3x that amount.)

Question 10

Answer 10

80 % = 0.8

(Tip: Since 1/5 = 20% = 0.2, 4/5 is simply 4x that amount.)

Question 11

Answer 11

10 % = 0.1

(Tip: Look for multiples of 1/10 in more complex fractions.)

Question 12

Answer 12

20 % = 0.2

(Tip: Since 1/10 = 10% = 0.1, 2/10 is simply 2x that amount.)

Question 13

Answer 13

30 % = 0.3

(Tip: Since 1/10 = 10% = 0.1, 3/10 is simply 3x that amount.)

Question 14

Answer 14

40 % = 0.4

(Tip: Since 1/10 = 10% = 0.1, 4/10 is simply 4x that amount.)

Question 15

Answer 15

50 % = 0.5

(Tip: Since 1/10 = 10% = 0.1, 5/10 is simply 5x that amount.)

Question 16

Answer 16

60 % = 0.6

(Tip: Since 1/10 = 10% = 0.1, 6/10 is simply 6x that amount.)

Question 17

Answer 17

70 % = 0.7

(Tip: Since 1/10 = 10% = 0.1, 7/10 is simply 7x that amount.)

Question 18

Answer 18

80 % = 0.8

(Tip: Since 1/10 = 10% = 0.1, 8/10 is simply 8x that amount.)

Question 19

Answer 19

90 % = 0.9

(Tip: Since 1/10 = 10% = 0.1, 9/10 is simply 9x that amount.)

Question 20

Answer 20

1 % = 0.01

(Tip: Look for multiples of 1/100 in more complex fractions.)