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1/16" + 7/8"

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" + 7/8" =

=0-15/16"

Sum

0-15/16"

Decimal inch

0.9375"

Millimetres

23.8125 mm

1/16" − 7/8"

-0-13/16"

The work

Over a common denominator

Put both over 16: 1/16 = 1/16 and 7/8 = 14/16. Add the tops: 1/16 + 14/16 = 15/16. Reduced, that's 0-15/16" (0.9375 inches). TapeMath tracks it as an exact fraction, so it lands dead on the tape mark.

Keep going

1/16" to decimal 7/8" to decimal All fraction sums Add it on the calculator

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