Ratio and Proportion
A ratio is the comparison of two or more quantities of same kind using division or we can define ratio of two quantities a and b of the same kind in the same units as a fraction which is written generally as a : b (read as ‘a’ is to ‘b’). In the ratio a : b, ‘a’ is called the first term or antecedent and ‘b’ is called the second term or consequent.
RATIO IN SIMPLEST FORM OR LOWEST TERM
A ratio is said to be in its simplest form or lowest terms when its terms do not have common factor except 1.
1. Ratio only exists between quantities of same kind :
(i) There exists no ratio between the height of a child and the weights of a child.
(ii) We cannot write a ratio between the age of a student and the marks obtained by the student.
2. To find a ratio between the quantities of same kind, quantities should be expressed in same units.
3. Ratio has no unit.
(I) Comparison of Ratio: Two ratios can be compared by converting them to like fractions. If the two fractions are equal, we say that two given ratios are equivalent.
Express the ratio 36 : 81 in the simplest form.
H.C.F. of 36 and 81 is 9
veda skill training academy
Course : CBSE Class 7
Start Date : 21.01.2022
End Date : 31.03.2022
Types of Batch : Live Online Class
|Mathematics(30 hours)||6:00 AM||6:00 AM||6:00 AM||6:00 AM||6:00 AM||12:45 PM||12:45 PM|
|Science(30 hours)||6:00 AM||6:00 AM||6:00 AM||6:00 AM||6:00 AM||6:00 AM||12:45 PM|