In the fraction 7/12, 7 is called the numerator and 12 is called the denominator. Following are some more fractions: (i) The fraction 5/7 is read as âfive-seventhâ which means that 5 parts out of 7 equal parts in which the whole is divided. In the fraction 5/7, 5 is called the numerator and 7 is called the denominator. (ii) The fraction 3/10 is read as âthree-tenthâ which means that 3 parts out of 10 equal parts in which the whole is divided. In the fraction 3/10, 3 is called the numerator and 10 is called the denominator.
The definition of opaque is not capable of having light pass through or hard to understand. 1  An example of opaque is the quality of a black sheet of paper. 2  An example of opaque is the study of astrophysics.
The apparent color of an opaque object depends on the wavelength of the light that it reflects; e.g., a red object observed in daylight appears red because it reflects only the waves producing red light. The color of a transparent object is determined by the wavelength of the light transmitted by it.