Alma is 6 3/4 years old, while her brother david is 3 5/6 years old. What is the sum of the ages of alma and david?

127/12 = 10 7/12

Step-by-step explanation:

convert mixed fractions into improper fractions

6¾ = [ (6*4) + 3]/4 = 27/4

3 5/6 = [ (6*3) + 5]/6 = 23/6

sum up the fractions

we get

(27/4) + (23/6)

= (81+46) / 12. LCM is 12

= 127/12

divide 127 with 12

the remainder is 7, quotient is 10 and the

divisor is 12

we get the mixed fraction

10 7/12