Question
Divide and simplify the expression: 3 3/5 / 2 ¼
- 1 4/5
- 1 3/5
- 2 4/5
- 2 3/5
The correct answer is: 1 3/5
Convert the mixed fractions into improper fractions
= (3*5+3)/5 / (4*2+1)/4
=(18/5)/(9/4)
To divide fractions, multiply the dividend by the reciprocal of the divisor.
18/5*4/9
= 72/45
= 8/5
= 1 3/5
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Assertion: Alcohols are dehydrated to hydrocarbons in presence of acidic zeolite.
Reason : Zeolites are porous catalyst.
Assertion: Alcohols are dehydrated to hydrocarbons in presence of acidic zeolite.
Reason : Zeolites are porous catalyst.
Assertion: The reaction of oxalic acid with acidified 
is first slow and then proceed with faster speed.
Reason : Acidified is a strong oxidising agent.
Assertion: The reaction of oxalic acid with acidified is first slow and then proceed with faster speed.
Reason : Acidified is a strong oxidising agent.
Assertion: Gold sol is hydrophobic and multimolecular:
Reason : Gold sol is prepared by Bredig's arc method.
Assertion: Gold sol is hydrophobic and multimolecular:
Reason : Gold sol is prepared by Bredig's arc method.
Assertion: 
can be used for coagulation of 
sol.
Reason: reacts with to give 
.
Assertion: can be used for coagulation of sol.
Reason: reacts with to give .
