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प्रश्न
Use the distributivity of multiplication of rational numbers over their addition to simplify:
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उत्तर
Given, `2/7 xx (7/16 - 21/4)`
= `2/7 xx 7/16 - 2/7 xx 21/4` ...[By using distributive property over addition]
= `1/8 - 3/2`
= `(1 - 12)/8`
= `(-11)/8`
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संबंधित प्रश्न
Write five rational numbers greater than − 2
Verify the property: x × y = y × x by taking:
Verify the property: x × (y × z) = (x × y) × z by taking:
Verify the property: x × (y × z) = (x × y) × z by taking:
By what number should we multiply \[\frac{- 8}{13}\]
so that the product may be 24?
For every rational numbers x, y and z, x + (y × z) = (x + y) × (x + z).
Verify the property x + y = y + x of rational numbers by taking
`x = 1/2, y = 1/2`
Verify the property x + y = y + x of rational numbers by taking
`x = (-3)/7, y = 20/21`
Verify the property x + y = y + x of rational numbers by taking
`x = (-2)/5, y = (-9)/10`
Verify the property x × (y + z) = x × y + x × z of rational numbers by taking.
`x = (-2)/3, y = (-4)/6, z = (-7)/9`
