Advertisements
Advertisements
Question
Evaluate: `(- 7)/6 + 4/-15 + (-4)/-30`
Advertisements
Solution
`(- 7)/6 + 4/-15 + (-4)/-30`
`=(- 7)/6 + (-4)/15 + (4)/30`
`= (- 7 xx 5)/(6 xx 5) + (-4 xx 2)/(15 xx 2) + (4 xx 1)/(30 xx 1)` (∵ L.C.M. of 6, 15, 30 = 30)
`= (-35)/30 + (-8)/30 + 4/30`
`= (- 35 - 8 + 4)/30`
`= (- 43 + 4)/30 = (-39)/30`
APPEARS IN
RELATED QUESTIONS
Compare: `2/7 and (-3)/-8`
Arrange the given rational numbers in ascending order:
`7/10 , (-11)/-30 "and" 5/-15`
Fill in the blank:
`-5/8` and `-3/10` are on the ________ side of zero.
Add: `4/-15 "and" (-7)/-15`
Evaluate: `5 + (-3)/4 + (-5)/8`
Multiply: `27/28 "and" -14`
Evaluate: `(11/-9 xx 21/44) + ((-5)/9) xx (63/-100)`
By what number should `(-3)/8` be multiplied so that the product is `(-9)/16`?
Evaluate: `(-2)/3 + 3/4`
Evaluate: `(18/33 xx (-22)/27) - ((13)/25 xx (-75)/26)`
