Fractions | Maths

• ഭിന്നസംഖ്യ
• Numbers of the form x/y where x and y ≠ 0
• Proper fraction: Fractions whose numerator is less than the denominator (Numerator < denominator) Eg : ⅖, ⅜  
• Improper fraction: Fractions whose  numerator either equal to or greater than the denominator  (Numerator = denominator or, Numerator > denominator) Eg : 5/4 , 8/3
• Mixed fraction: A combination of a proper fraction and a whole number. Eg: 1 ⅓ , 2 ¼ . Mixed fraction can always be expressed as an improper fraction 4 ⅓ =[(4*3) +1] /3 = 13/3 , 2 ¼ =[(2*4) +1] /4 = 9/4

Questions
1.x/y = 1/5 ആയാൽ (x + y)/(x - y) എത്ര ?
(Process Server - Judicial 2018)
y=5x
Substituting y
(x + y)/(x - y)= 6x/-4x
-3/2

2.-1/x= -7 ആണെങ്കിൽ x എന്ന സംഖ്യ എത്രയായിരിക്കും?
(STORE KEEPER-KSFDC 2018)
x=1/7

3.If a = 1/3 and b = 1/5, then the value of (a+b) /ab
(Beat Forest Officer 2018)
(1/3  + 1/5 )/(1/3 * 1/5)
(8/15) / (1/15)
8

4.ഒരു സംഖ്യയുടെ 2/3 ഭാഗവും ആ സംഖ്യയുടെ 1/6 ഭാഗവും കൂടിയപ്പോൾ 30 കിട്ടി. ആ സംഖ്യയേത്?
(LGS 2018)
⅔y+⅙y=30
⅚y=30
y=36

5.2½ യുടെ 1½ മടങ്ങ് എത്ര?
(Security Guard- Government Secretariat 2018)
5/2*3/2=15/4= 3¾

6.Which is the largest among the following ? 
3/4, 5/8, 9/13, 5/9
(Junior Assistant KSFE /KSEB/KSRTC 2018)
3/4

7.What number should be added to 2/7 to get 3/14 ?
(Civil Police Officer 2018)
3/14-4/14=-1/14

8.One sixth of a certain number decreased by 5 is equal to 2. Find the number.
(Civil Police Officer 2018)
(⅙ * n)- 5=2
n/6=7
n=42

9.18/24 = ?/4 ഇതിൽ ? ന്റെ സ്ഥാനത്തെ അക്കം എത്ര ?
(AYAH 2018)
Answer : 3

10.1/2 + 2/3 + 3/4 + 5/6 എന്നിവയുടെ തുകയേത്?
(LGS 2018)
(3+4+5)/6 +(3/4)
2+ (3/4)

11/4

11)

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