Skills Work

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Adding and subtracting mixed numbers:


1) 1 1/2 + 1 3/4

= 3/2 + 7/4

= 12/8 + 14/8

= 26/8 = 13/4 = 3 1/4

2) 7 1/6 + 15 7/9

= 43/6 + 142/9

= 387/54 + 852/54

= 1239/54 = 23 3/54

3) (7/8 - 1/4) + 1/2

= (28/32 - 8/32) + 1/2

= 20/32 = 5/8 + 1/2

= 10/16 + 8/16

= 18/16 = 9/8

4) 5/6 - 4/9

= 45/54 - 24/54

= 21/54

= 7/18

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