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7/16" + 5/8"

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

7/16" + 5/8" =

=1-1/16"

Sum

1-1/16"

Decimal inch

1.0625"

Millimetres

26.9875 mm

7/16" − 5/8"

-0-3/16"

The work

Over a common denominator

Put both over 16: 7/16 = 7/16 and 5/8 = 10/16. Add the tops: 7/16 + 10/16 = 17/16, which carries past one inch. Reduced, that's 1-1/16" (1.0625 inches). TapeMath tracks it as an exact fraction, so it lands dead on the tape mark.

Keep going

7/16" to decimal 5/8" to decimal All fraction sums Add it on the calculator

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