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George drew a line that was 8 1 ⁄ 6 inches long. If he drew a second line that was 4 2 ⁄ 7inches longer, what is the length of the second line

Sagot :

Answer:

12 19/42

Step-by-step explanation:

= (8 + 4) + (1/6 + 2/7) =

12 + 1 × 7/6 × 7 + 2 × 6/7 × 6 =

12 + 7/42 + 12/42 =

12 + 7 + 12/42 =

12 + 19/42 =

12 19/42