Advertisements
Advertisements
प्रश्न
Find (a + b) ÷ (a – b) if a = `1/2`, b = `2/3`
Advertisements
उत्तर
a = `1/2`, b = `2/3`
a + b = `1/2 + 2/3`
= `(1 xx 3 + 2 xx 2)/6`
= `(3 + 4)/6`
= `7/6`
a − b = `1/2 - 2/3`
= `(1 xx 3 - 2 xx 2)/6`
= `(3 - 4)/6`
= `(-1)/6`
(a + b) ÷ (a − b) = `7/6 ÷ (-1)/6`
= `7/6 xx 6/(-1)`
= −7
APPEARS IN
संबंधित प्रश्न
Find the value of `(-1)/8 ÷ 3/4`.
Evaluate:
`- 5/12 ÷ 1/16`
Divide:
` 3 "by" 1/3`
Divide:
`(-5)/8 "by" 1/4`
Find (m + n) ÷ (m - n), if:
m = `4/5` and n = `-3/10`
If `p/q` is a rational number and m is a non-zero common divisor of p and q, then `p/q = (p ÷ m)/(q ÷ m)`.
Find the reciprocal of the following:
`(1/2 xx 1/4) + (1/2 xx 6)`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the reciprocal of x + y.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find (x ÷ y) × z.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find (x – y) + z.
