2/3 + 9/12 add fractions with unlike denominators

Step-by-step explanation:

  <-- let's change 2/3 into a fraction that has 12 as the denominator

× 4   <-- multiply both the numerator and the denominator by 4

2 × 4 = 8   <-- new numerator

3 × 4 = 12   <-- new denominator

now we have +

+ =    <-- let's change it into a mixed number

17 ÷ 12 =

192/15 = 12.8.

12.8

step-by-step explanation:

192/15 is 12.8.

however, it says to round to the nearest foot, which would equal 13.