adding and fractions

What number should be added to the fraction - 5 6 to get the fraction 3 7 ? => - 53 42 or 56 45 or 53 42 or None of the above..

When a fraction is added to 5 21 , the sum is 10 21 . Find the fraction. => 1 21 or 1 5 or 5 21 or 21 5..

If the degree of the numerator is greater than the degree of the denominator in a rational fraction, then the rational function is called improper rational function. Like the case of improper fractions reducible to an integer added to a proper fraction, impro..

Question: How can you prove that air is a mixture? Answer: a) The composition of air is variable. The composition varies from place to place and with altitude. For instance, at higher altitudes, there is less oxygen in the air. In industrial areas, due to the waste gases coming out of in..

.e., any amount of alcohol or water can be mixed with each other. Temperature changes for such solutions are usually not of primary importance. It is important to remember that for a mixture of liquids, the terms miscible and immiscible are frequently used, rather than soluble and insoluble. If alc..

Calculation of Degree of Dissociation - Degree of Dissociation [ a ] - It is defined as the fraction of the total number of molecules undergoing dissociation at a given concentration. Example: If 100 molecules of acetic acid are added to H 2 O of which 10 molecules ionise, then ..

>Find the fraction which becomes when the denominator is increased by 5 and is equal to when the numerator is diminished by 4. Let the fraction by When y is increased by 5, fraction becomes or 2x = y + 5 2x - y = 5 (1) When x is diminished by 4, fraction..

3 and density 2.7 gcm - 3 is completely immersed in kerosene. Determine upthrust exerted on the piece of aluminium and also determine how much will it weigh in kerosene. (density of kerosene = 0.8 g cm - 3 ) Suggested Answer:- Weight of aluminium piece = V x d 1 = 200 x 2.7 = 540 g Upth..