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Square 7 - 23 - 1/8 ​

User Johnnerz
by
8.0k points

1 Answer

5 votes

Answer:

Explanation:

Conversion a mixed number 23 1/

2

to a improper fraction: 23 1/2 = 23 1/

2

= 23 · 2 + 1/

2

= 46 + 1/

2

= 47/

2

To find a new numerator:

a) Multiply the whole number 23 by the denominator 2. Whole number 23 equally 23 * 2/

2

= 46/

2

b) Add the answer from previous step 46 to the numerator 1. New numerator is 46 + 1 = 47

c) Write a previous answer (new numerator 47) over the denominator 2.

Twenty-three and one half is forty-seven halfs

Conversion a mixed number 3 5/

8

to a improper fraction: 3 5/8 = 3 5/

8

= 3 · 8 + 5/

8

= 24 + 5/

8

= 29/

8

To find a new numerator:

a) Multiply the whole number 3 by the denominator 8. Whole number 3 equally 3 * 8/

8

= 24/

8

b) Add the answer from previous step 24 to the numerator 5. New numerator is 24 + 5 = 29

c) Write a previous answer (new numerator 29) over the denominator 8.

Three and five eighths is twenty-nine eighths

Subtract: 47/

2

- 29/

8

= 47 · 4/

2 · 4

- 29/

8

= 188/

8

- 29/

8

= 188 - 29/

8

= 159/

8

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(2, 8) = 8. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 2 × 8 = 16. In the following intermediate step, it cannot further simplify the fraction result by canceling.

In other words - forty-seven halfs minus twenty-nine eighths is one hundred fifty-nine eighths.

User Johannes Setiabudi
by
7.3k points

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