Question

What is the sum of 1 2/16 + .6 + (-½)

Answer 1

1 9/40

Explanation:

Any calculator can tell you the sum is ...

1 + 2/16 + 0.6 - 1/2 = 1.225

The decimal fraction can be reduced, if you like:

225/1000 = (25)(9)/(25(40)) = 9/40

As a mixed number, the sum is 1 9/40.

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Alternate solution

1 2/16 + 0.6 -1/2 = 1 1/8 + (6/10 -5/10) = 1 1/8 + 1/10

= 1 + (1/8 +1/10) = 1 +(5/40 +4/40) = 1 9/40