Read the whole inches first, then work out which fraction mark you have landed on between them.
Layout is measurement. A box set an eighth out is a box that will not line up with the one next to it, and the cut you already made is not coming back.
Fractions on a tape add like any other fraction, as long as the bottom numbers match. A half is two quarters, so 1/2 + 1/4 is 2/4 + 1/4 = 3/4 of an inch. The tape is showing you halves, quarters, eighths and sixteenths, each one splitting the one before it in two.
Check yourself: What is 1/2 inch plus 1/4 inch?
Answer: 3/4 inch.
Put both over the same bottom number first: 1/2 is the same as 2/4. Then 2/4 + 1/4 = 3/4.
No card. No account needed to start. Score by topic against the 70% mark.
Written from the owner's poster for this lesson. Nothing added beyond what the poster states.
Written for Texas apprentices as free study material. The Texas apprentice licence is an application, not an exam (Occupations Code 1305.161), and nothing here counts as apprenticeship hours or continuing-education credit. VoltMark is not affiliated with, endorsed by, or sponsored by NFPA, PSI, TDLR, or any state or local licensing authority. Always follow your employer's safety programme and your supervising electrician.
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