Question

urgent pls take 10 points

Answer 1

Answer:

(i) 5/48

(ii) -5/3

(iii) -3/50

(iv) 5/6

(v) 2 1/2

(vi) -11/21

Step-by-step explanation:

(i) 13/24 - 7/16

    LCM of 24  & 16 = 48

    (13*2)/(24*2) - (7*3)/(16*3)

     = 26/48 - 21/48 = (26-21)/48

     = 5/48

(ii) 6 - 23/3 = 6/1 - 23/3

    LCM of 1 & 3 = 3

    = (6*3)/(1*3) - 23/3 = 18/3 - 23/3

    = (18-23)/3 = -5/3

(iii) 21/25 - 18/20

    LCM of 25 & 20 = 100

    (21*4)/(25*4) - (18*5)/(20*5)

    = 84/100 - 90/100

    = (84-90)/100 = -6/100

    = -3/50

(iv) 3 3/10 - 2 7/15

    LCM of 10 & 15 = 30

    3 (3*3)/(10*3) - 2 (7*2)/(15*2)

    = 3 9/30 - 2 14/30

    = 99/30 - 74/30

    = (99-74)/30

    = 25/30  = 5/6

   

(v) 3 1/5 - 7/10

    LCM of  5 & 10 = 10

    3 (1*2)/(5*2) - 7/10

    = 3 2/10 - 7/10

    = 32/10 - 7/10

    = (32-7)/10

    = 25/10 = 5/2

    = 2 1/2

(vi) 15/7 - 8/3

     LCM of 7 & 3 = 21

     (15*3)/(7*3) - (8*7)/(3*7)

     = 45/21 - 56/21

     = (45-56)/21

     = -11/21

Answer 2

Answer:

above answer is correct..

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have a great day