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प्रश्न
Use the distributivity of multiplication of rational numbers over their addition to simplify:
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
Verify the property: x × y = y × x by taking:
Verify the property: x × (y + z) = x × y + x × z by taking:
Use the distributivity of multiplication of rational numbers over their addition to simplify:
Name the property of multiplication of rational numbers illustrated by the following statements:
By what number should we multiply \[\frac{- 8}{13}\]
so that the product may be 24?
Find: `2/5 xx (-3)/7 - 1/14 - 3/7 xx 3/5`.
Verify the distributive property a × (b + c) = (a × b) + (a + c) for the rational numbers a = `(-1)/2`, b = `2/3` and c = `(-5)/6`
`1/5 xx [2/7 + 3/8] = [1/5 xx 2/7] +` ______.
Verify the property x + y = y + x of rational numbers by taking
`x = (-3)/7, y = 20/21`
Four friends had a competition to see how far could they hop on one foot. The table given shows the distance covered by each.
| Name | Distance covered (km) |
| Seema | `1/25` |
| Nancy | `1/32` |
| Megha | `1/40` |
| Soni | `1/20` |
Who walked farther, Nancy or Megha?
