Simplify or reduce the answer to 1/4+2/7+1/2

 29/28

Step-by-step explanation:

To add fractions we have to calculate the Least Common Denominator of the denominators. Then we have to change each fraction (using equivalent fractions) to make their denominators the same as the Least Common Denominator. Then we can add (or subtract) the fractions.

LCD (4,7,2)= 4·7 = 28

1/4 = 7/28

2/7 = 4·2/28 = 8/28

1/2 = 14/28

Since the fractions have the same denominator we can add them

7/28 + 8/28 + 14/28 = (7+8+14)/28 = 29/28



muyb ajo

step-by-step explanation:

jegosu

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)