Question

please ans important i need it please
Q.5. Find (a) (-7)/4 + 5/3 + (-5)/6 + 1/3 + (-1)/2 (b) 3/4 + (-3)/5 + (-2)/3 + 5/(8 )+ (-4)/15.
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Answer 1

Answer:

Step-by-step explanation:

Frist we take the LCM of denominator

(-7/4)+5/3+(-5/6)+1/3(-1/2)

LCM=12

Then multiply denominator and numerator

(-21/12)+20/12+(-10/12)+4/12+(-6/12)

Then ans =-13

Answer 2

Step-by-step explanation:

(a)

Given: (-7/4) + (5/3) + (-5/6) + (1/3) + (-1/2)

LCM of 4,3,6,3,2 = 12

= (-21/12) + (20/12) - (10/12) + (4/12) - (6/12)

= (-21 + 20 - 10 + 4 - 6)/12

= -13/12

(b)

Given: (3/4) + (-3/5) + (-2/3) + (5/8) + (-4/15)

LCM of 4,5,3,8,15 = 120

= (90/120) - (72/120) - (80/120) + (75/120) - (32/120)

= (90 - 72 - 80 + 75 - 32)/120

= -19/120

Hope it helps!