Question

3/7 +(-6/11)+(-8/21)+5/22

Answer 1

solution:

3/7 + (-6/11)+(-8/21)+(5/22)

=taking lcm of the denominator 7 11 21 and 22 and then aolving it .

=LCM OF 7 11 AND 22 = 2*3*7*11= 462

=(462/7)*3-(462/11)*6-(462/21*8+(462/22)*5

= (198/462)-(252/462)-(176/462)+(105/462)
= (303/462)- (428/462)

= (-125/462)
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Answer 2

Step-by-step explanation:

Solution:

Given expression,

3/7+(-6/11)+(-8/21)+(5/22)

→ [(3/7) + (-8/21)] + [(-6/11) + (5/22)]

(क्रमविनिमेयता और साहचर्यता के उपयोग से)

→ [{(3*3) + (-8) * 1}/21] + [{(-6) * 2 + 5 * 1}/22]

→ [{9 + (-8)}/21] + [(-12 + 5)/22]

→ (1/21) + (-7/22)

→ {1 * 22 * + (-7) * 21}/462

→ (22 - 147)/462

→ -125/462 Ans.