To add 2/5 and 3/10, we need to find a common denominator. The least common multiple of 5 and 10 is 10, so we can rewrite 2/5 as 4/10. Adding 4/10 and 3/10 gives us 7/10. Therefore, 2/5 + 3/10 = 7/10.
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The answer is 1/2 plus 3/10 = 4/5 in its simplest form
9/10 + 2/3 = 47/30 or 117/30
1/5 = 2/10Therefore 2/10 + 1/10 = 3/10
-3/2 + 8/5 = 1/10
4/10 + 1/5 = 2/5 + 1/5 = 3/5