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प्रश्न
Evaluate:
`((-13)/7 xx (- 35)/39) - ((-7)/45 xx (9)/14)`
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उत्तर
`((-13)/7 xx (- 35)/39) - ((-7)/45 xx (9)/14)`
`=> (-13 xx (-35))/(7 xx 39) - (- 7 xx 9)/(45 xx 14)`
`=> (cancel(-13)^(-1) xx cancel(-35)^-5)/(cancel(7)_1 xx cancel(39)_3) - (- cancel(7)^1 xx cancel(9)^1)/(cancel(45)_5 xx cancel(14)_2)`
`=> (-1 xx (-5))/(1 xx 3) + (1 xx 1)/(5 xx 2)`
`=> (5)/3 + 1/10`
∵ L.C.M. of 3 and 10 = 30
`=> (5 xx 10)/(3 xx 10) + (1 xx 3)/(10 xx 3)`
`=> (50 + 3)/30 = (53)/30 = 1 23/30`
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संबंधित प्रश्न
Express the following rational number in the standard form. `(-7)/-8`
Fill in the blank:
`5/8` and `3/10` are on the ________ side of zero.
Add: `(-7)/25 "and" 9/-25`
Subtract: `11/18 "from" (-5)/18`
Subtract: `(- 16)/21 "from" 1`
Subtract: `4 "from" -3/13`
Divide: `-14 "by" 7/-2`
The cost of 11 pens is ₹ `24 3/4`. Find the cost of one pen.
The sum of two rational numbers is -5. If one of them is `(-52)/25`, find the other.
Evaluate: `- 5/7 - (- 3/8)`
