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Vedmedyk [2.9K]
3 years ago
10

Help please I'm not sure if I got it right, I'm a bit confused. 5th grade math

Mathematics
2 answers:
dmitriy555 [2]3 years ago
8 0

Answer:

  check your math

Step-by-step explanation:

The first subtraction was correct:

  36 -7 3/4 = 28 1/4

The second subtraction needs to be revisited.

  28 1/4 -6 2/4 = 27 5/4 -6 2/4 = 21 3/4

__

You can do what you did, but you need to pay attention to the signs.

  28 1/4 -6 2/4 = (28 -6) +(1/4 -2/4) = 22 - 1/4 = 21 3/4

The result of subtracting 2/4 from 1/4 is -1/4, not +1/4.

_____

The length of the first cut piece was 21 3/4 inches.

postnew [5]3 years ago
8 0

Answer:

21 ¾ inches

Step-by-step explanation:

36 - 6½ - 7¾

36 - (6½ + 7¾)

36 - (6 + 7 + ½ + ¾)

36 - (13 + [2+3]/4) lcm:4

36 - (13 + 5/4)

36 - (13 + 1 + ¼)

36 - 14 - ¼

22 - ¼

21¾ inches

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