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Rational number in descending order 8/7,-9/8,-3/2,0,2/5
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To arrange them in descending order,
We will first make their denominators same.
Taking L.C.M of the denominators = 280
= 8/7 × 40/40 = 320/280
= -9/8 × 35/35 = -315/280
= -3/2 × 140/140 = -420/280
= 0/ 1 × 280 / 280 = 0/280
= 2/5 × 56/56= 112/280
Now we can easily arrange them according to their order,
= -420/280, -315/280, 0/280, 112/280, 320/280
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