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Answered

Add or Subtract. Express your answer in simplest form, if possible. Show
your solutions.
1. 4/9 + 2/ 9 + 6/ 9 =
2. 3 /4 + 2/ 3 + 1 /2 =
3. 9 5 /8 − 4 1 /8 = 4. 9 − 4 5 /7 =​
4. 9 − 4 5 /7 =​

Sagot :

Kiannakaigo

1. 4/9 + 2/9 + 6/9

4 + 2/9 + 6/9

6/9 + 6/9

2/3 + 2/3

2 + 2/3

4/3

Fctor:

2²/3 = 1 1/3

2. 3/4 + 2/3 + 1/2

9/12 + 8/12 + 1/2

9 + 8/12 + 1/2

17/12 + 1/2

17/12 + 6/12

17 + 6/12

23/12

Factor:

23/2².3 = 1 11/12

3. 7 (9 × 8 + 5) – 28 (4 × 2 + 1) = 274.4 – 8 (4 × 7 + 5)

7 (72 + 5) – 28 (4 × 2 + 1) = 274.4 – 8 (4 × 7 + 5)

7 × 77 – 28 (4 × 2 + 1) = 274.4 – 8 (4 × 7 + 5)

539 – 28 (4 × 2 + 1) = 274.4 – 8 (4 × 7 + 5)

539 – 28 (8 + 1) = 274.4 – 8 (4 × 7 + 5)

539 – 28 × 9 = 274.4 – 8 (4 × 7 + 5)

539 – 252 = 274.4 – 8 (4 × 7 + 5)

287 = 274.4 – 8 (4 × 7 + 5)

287 = 274.4 – 8 (28 + 5)

287 = 274.4 – 8 × 33

287 = 284.4 – 264

287 = 10.4

False

4. 9 – 4 5/7

9 – 28 + 5/7

9 – 33/7

63/7 – 33/7

63 – 33/7

30/7

Factor:

2•3•5/7 = 4 2/7

Sana makatulong.

Kung may mali man paki tama na lng!

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