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Simplify: (-3)/5xx\ (-(10)/9)xx\ ((21)/(...

Simplify: `(-3)/5xx\ (-(10)/9)xx\ ((21)/(-4))xx(-6)`

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Verified by Experts

`(-3)/5xx\ (-(10)/9)xx\ ((21)/(-4))xx(-6)`
All `-` gets cancel
`=1/1xx2/3xx21/2xx3/1`
`=21`
Hence simplified.
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RD SHARMA-RATIONAL NUMBERS-All Questions
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  2. Simplify: (3/(11)xx5/6)-\ (9/(12)xx4/3)+\ (5/(13)xx6/(15))

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  3. Simplify: (-3)/5xx\ (-(10)/9)xx\ ((21)/(-4))xx(-6)

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  4. simplify : 3/(11)xx(-5)/6xx\ (-(22)/9)xx\ (-9/5)

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