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1/2" + 15/16"

Adding two fractions of an inch, exactly — the everyday jobsite arithmetic that a decimal calculator gets wrong. Reduced, carried, and shown in millimetres.

1/2" + 15/16" =
=1-7/16"
Sum
1-7/16"
Decimal inch
1.4375"
Millimetres
36.5125 mm
1/2" − 15/16"
-0-7/16"
The work

Over a common denominator

Put both over 16: 1/2 = 8/16 and 15/16 = 15/16. Add the tops: 8/16 + 15/16 = 23/16, which carries past one inch. Reduced, that's 1-7/16" (1.4375 inches). TapeMath tracks it as an exact fraction, so it lands dead on the tape mark.
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