math
posted by no name .
round 0.8394263 to the nearest hundredthousndth.
Add the fractions 2/3,3/8 and 5/12 reduce to lowest terms
subtract the fraction 7 4/ from 18 6/15 reduce answer in lowet terms

I'll do one of these. Which problem would you like me to do for you?
I'll be glad to check your answers. 
add thee fractions 2/3,3/8, and 5/12 reuce to lowest terms. i know they need a common demonitor.

The least common multiple of 3, 8, and 12 is 24.
2/3 = 16/24
3/8 = 9/24
5/12 = 10/24
16/24 + 9/24 + 10/24 = 35/24 = 1 11/24
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