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30 September, 04:19

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?

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  1. 30 September, 07:02
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    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
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