Advertisements
Advertisements
Question
Evaluate: `(11/-9 xx 21/44) + ((-5)/9) xx (63/-100)`
Advertisements
Solution
`(11/-9 xx 21/44) + ((-5)/9) xx (63/-100)`
`= (11/-9 xx 21/44) + (5/9 xx 63/100)`
`= -(1 xx 7)/(3 xx 4) + (1 xx 7)/(1 xx 20) = - 7/12 + 7/20`
`= - (7 xx 5)/(12 xx 5) + (7 xx 3)/(20 xx 3)`
(∵ L.C.M. of 12 and 20 = 60)
`= - 35/60 + 21/60 = (- 35 + 21)/60 = (- 14)/60`
APPEARS IN
RELATED QUESTIONS
Express the following rational number in the standard form. `5/-12`
Arrange the given rational numbers in ascending order:
`7/10 , (-11)/-30 "and" 5/-15`
Add: `(-5)/9 "and" 7/18`
Evaluate: `- 11/18 + (-3)/9 + 2/-3`
Evaluate: `((-8)/9) xx ((-3)/16)`
Multiply: `3 3/5 "and" -10`
Multiply: `27/28 "and" -14`
What rational number should be added to `(- 3)/5` to get 2?
The sum of two rational numbers is `(-3)/8`. If one of them is `3/16` find the other,
What rational number should be subtracted from `- 5/12` to get `5/24`.
