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1/16" + 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.

1/16" + 15/16" =

=1"

Sum

Decimal inch

Millimetres

25.4 mm

1/16" − 15/16"

-0-7/8"

The work

Over a common denominator

Put both over 16: 1/16 = 1/16 and 15/16 = 15/16. Add the tops: 1/16 + 15/16 = 16/16. Reduced, that's 1" (1 inches). TapeMath tracks it as an exact fraction, so it lands dead on the tape mark.

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1/16" to decimal 15/16" to decimal All fraction sums Add it on the calculator

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