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nika2105 [10]
2 years ago
12

Oh no my math its broken

Mathematics
1 answer:
Sidana [21]2 years ago
4 0

Answer:

  a) 1 1/2

  b) 3/8

  c) 2 11/12

  d) 1/2

Step-by-step explanation:

When one denominator is a multiple of the other, the least common denominator is the larger of the two. Expressing the fractions using the least common denominator can simplify the work a bit.

For adding and subtracting mixed numbers, I find it easiest to combine the integer parts and the fraction parts separately, then make an adjustment to the integer as may be required.

__

a) 5/6 +4/6 = 9/6 = 1 3/6 = 1 1/2

__

b) 7/8 -4/8 = 3/8

__

c) 1 2/3 +1 1/4 = (1 + 1) + (8/12 + 3/12) = 2 11/12

__

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

  = 1 - 3/6 = 1 - 1/2 = 1/2

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