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प्रश्न
Evaluate: `((- 35)/39 xx (- 13)/7) - (7/90 xx (- 18)/14)`
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उत्तर
`((- 35)/39 xx (- 13)/7) - (7/90 xx (- 18)/14)`
`= ((-5)xx (- 1))/(3 xx 1) - ((1 xx (-1))/(5 xx 2))`
`= 5/3 - (- 1/10)`
`= (5 xx 10)/(3 xx 10) + 1/(10 xx 3)`
`= (50 + 3)/30 = 53/30 = 1 23/30`
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संबंधित प्रश्न
Arrange the given rational numbers in descending order:
`3/-10, (-13)/30 "and" 8/-20`
Add: `7/5 "and" 2/5`
Add: `(-9)/(-16) "and" (-11)/8`
Multiply: `1 1/8 "and" 10 2/3`
Multiply: ` 35 "and" (-18)/25`
A bus is moving with a speed of 65 `1/2` km per hour. How much distance will it cover in 1 `1/3` hours.
Divide: `(-20)/9 "by" (-5)/9`
The product of two rational numbers is 24. If one of them is `- 36/11`, find the other.
By what rational number should we multiply `20/-9`, so that the product may be `(-5)/9`?
Evaluate: `(7/8 xx 24/21) + ((-5)/9 xx 6/-25)`
