Question

Add

Use LCM to solve

See the Picture and solve. ​

Answer 1

Answer: I went down the columns. I simplified the answers put them into mixed numbers where I could.

1) 3/6+2/6 = 5/6

2) 6/5 = 1   1/5

3) 6/9+5/9 = 11/9 = 1   2/9

4) 12/15+10/15 = 22/15 = 1   7/15

5) 7/10 + 4/10 = 11/10 = 1   1/10

6) 2/3+1/7 = 17/21

7) 4/9 + 2/7 = 46/63

8) 3/10+7/15 = 23/30

9) 5/9+1/3 = 8/9

10) 2/5+1/6 = 17/30

11)4/5+2/3 = 22/15 = 1   7/15

12) 5/6+1/3 = 7/6 = 1   1/6

13) 4/3+1/2 = 11/6 = 1   5/6

14) 2/5+3/4 = 23/20 = 1  3/20

15) 1/2 +4/3 = 11/6 = 1   5/6

16) 5/6 +2/5 = 37/30 = 1  7/30

17) 8/9+5/4 = 77/36 = 2 5/36

18) 7/8+1/4 =  9/8 = 1  1/8

19) 1/2+1/3 = 5/6

20) 6/10+3/5 = 6/5 = 1  1/5

21) 1/6+1/3 = 3/6 = 1/2

22) 6/9+4/5 = 22/15 = 1  7/15

23) 1/2 +4/3 = 11/6 = 1  5/6

24) 8/12+6/10 = 19/15 = 1   4/15

25) 5/6+4/3 = 13/6 = 2   1/6

Answer 2

Step-by-step explanation:

Solutions :-

1) (3/6)+(2/6)

LCM = 6

= (3+2)/6

= 5/6

(3/6)+(2/6) = 5/6

2)(5/10)+(7/10)

LCM = 10

= (5+7)/10

= 12/10

= 6/5

(5/10)+(7/10) = 6/5

3)(6/9)+(5/9)

LCM = 9

= (6+5)/9

= 11/9

(6/9)+(5/9) = 11/9

4)(12/15)+(10/15)

LCM = 15

= (12+10)/15

= 22/15

(12/15)+(10/15) = 22/15

5)(7/10)+(4/10)

LCM = 10

= (7+4)/10

= 11/10

(7/10)+(4/10) = 11/10

6)(2/3)+(1/7)

LCM of 3 and 7 = 21

= [(2×7)+(1×3)]/21

= (14+3)/21

= 17/21

(2/3)+(1/7) = 17/21

7)(4/9)+(2/7)

LCM of 9 and 7 = 63

=[(4×7)+(2×9)]/63

= (28+18)/63

= 46/63

(4/9)+(2/7) = 46/63

8) (3/10)+(7/15)

LCM of 10 and 15 = 30

=[(3×3)+(7×2)]/30

= (9+14)/30

= 23/30

(3/10)+(7/15) = 23/30

9)(5/7)+(1/3)

LCM of 7 and 3 = 21

= [ (5×3)+(1×7)]/21

= (15+7)/21

= 22/21

(5/7)+(1/3) = 22/21

10) (2/5)+(1/6)

LCM of 5 and 6 = 30

= [ ( 2×6)+(1×5)]/30

= (12+5)/30

= 17/30

(2/5)+(1/6) = 17/30

11)(4/5)+(2/3)

LCM of 5 and 3 = 15

= [ (4×3)+(2×5)]/15

= (12+10)/15

= 22/15

(4/5)+(2/3) = 22/15

12) (5/6)+(1/3)

LCM of 6 and 3 = 6

= [ (5×1)+(1×2)]/6

= (5+2)/6

= 7/6

(5/6)+(1/3) = 7/6

13) (4/3)-(1/2)

LCM of 3 and 2 = 6

= [ (4×2)-(1×3)]/6

= (8-3)/6

= 5/6

(4/3)-(1/2) = 5/6

14)(2/5)+(3/4)

LCM of 5 and 4 = 20

= [ (2×4)+(3×5)]/20

= (8+15)/20

= 23/20

(2/5)+(3/4) = 23/20

15)(1/2)+(4/3)

LCM of 2 and 3 = 6

= [ (1×3)+(4×2)]/6

= (3+8)/6

= 11/6

(1/2)+(4/3) = 11/6

16)(5/6)+(2/5)

LCM of 6 and 5 = 30

= [ (5×5)+(2×6)]/30

= (25+12)/30

= 37/30

(5/6)+(2/5) = 37/30

17) (8/9)+(5/4)

LCM of 9 and 4 = 36

= [ (8×4)+(5×9)]/36

= (32+45)/36

= 77/36

(8/9)+(5/4) = 77/36

18) (7/8)+(1/4)

LCM of 8 and 4 = 8

= [ (7×1)+(1×2)]/8

= (7+2)/8

= 9/8

(7/8)+(1/4) = 9/8

19)(1/2)+(1/3)

LCM of 2 and 3 = 6

= [(1×3)+(1×2)]/6

= (3+2)/6

= 5/6

(1/2)+(1/3) = 5/6

20)(6/10)+(3/5)

= (3/5)+(3/5)

LCM = 5

= (3+3)/5

= 6/5

(6/10)+(3/5) = 6/5

21)(1/6)+(1/3)

LCM of 6 and 3 = 6

= [ (1×1)+(1×2)]/6

= (1+2)/6

= 3/6

= 1/2

(1/6)+(1/3) = 1/2

22)(6/9)+(4/5)

LCM of 9 and 5 = 45

= [ (6×5)+(4×9)]/45

= (30+36)/45

= 66/45

= 22/15

(6/9)+(4/5) = 22/15

23)(1/2)+(4/5)

LCM of 2 and 5 = 10

= [ (1×5)+(4×2)]/10

= (5+8)/10

= 13/10

(1/2)+(4/5) = 13/10

24)(8/12)+(6/10)

= (2/3)+(3/5)

LCM of 3 and 5 = 15

= [(2×5)+(3×3)]/15

= (10+9)/15

= 19/15

(8/12)+(6/10) = 19/15

25)(5/6)+(4/3)

LCM of 6 and 3 = 6

= [ (5×1)+(4×2)]/6

= (5+8)/6

= 13/6

(5/6)+(4/3) = 13/6