Question

Find the sum or difference and express your answer as a mixed number in the simplest form:

A) 3/8 + 7/8
B) 19/20 - 3/20
C) 3 1/12 - 5/12
D) 7/18 + 1 8/18

Answer 1

To find the sum or difference and express the answer as a mixed number in simplest form, add or subtract the fractions and simplify if necessary.

Step-by-step explanation:

To find the sum or difference and express the answer as a mixed number in simplest form, we need to add or subtract the fractions and then simplify if necessary.

A) 3/8 + 7/8:

3/8 + 7/8 = (3 + 7)/8 = 10/8 = 1 2/8 = 1 1/4.

B) 19/20 - 3/20:

19/20 - 3/20 = (19 - 3)/20 = 16/20 = 4/5.

C) 3 1/12 - 5/12:

We need to convert the mixed number to an improper fraction before subtracting. 3 1/12 = (3 * 12 + 1)/12 = 37/12. 37/12 - 5/12 = (37 - 5)/12 = 32/12 = 2 2/3.

D) 7/18 + 1 8/18:

We need to convert the mixed number to an improper fraction before adding. 1 8/18 = (1 * 18 + 8)/18 = 26/18. 7/18 + 26/18 = (7 + 26)/18 = 33/18 = 1 15/18.