Question 742474
1/4+5/8+7/10
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find a common denominator.  The product always works
4*8*10 = 320
80/320 + 200/320 + 224/320 = 504/320
= 63/40
= 1.575

(a)14/18 (b)13/22 (c)1.325 (d)1.575 (e)none of these