3/8 − 1/8 = 1/4, which is 0.25 as a decimal.
Answer
\frac{3}{8} - \frac{1}{8} = \textcolor{#0b5c56}{\frac{1}{4}}The difference is 1/4 in simplest form.
\displaystyle 0.251 of 4 equal parts
The problem
\frac{3}{8} - \frac{1}{8}Subtract the numerators. Keep the denominator 8.
= \frac{3 - 1}{8} = \textcolor{#0b5c56}{\frac{2}{8}}Simplify. List the factors of each:
Factors of 2: 1, 2
Factors of 8: 1, 2, 4, 8
The greatest common factor (GCF) is 2. Divide the top and bottom by 2.
= \frac{2 \div 2}{8 \div 2} = \textcolor{#0b5c56}{\frac{1}{4}}\begin{aligned} &\frac{3}{8} - \frac{1}{8} \\[8pt] &= \frac{3 - 1}{8} && \textcolor{#5b6660}{\textsf{subtract}} \\[8pt] &= \frac{2}{8} \\[8pt] &= \frac{2 \div 2}{8 \div 2} && \textcolor{#5b6660}{\textsf{simplify}} \\[8pt] &= \textcolor{#0b5c56}{\frac{1}{4}}\end{aligned}| Simplest form | 1/4 |
|---|---|
| Decimal | 0.25 |
| Percent | 25% |
| Same fractions | 1/8 + 3/8, 1/8 × 3/8, 3/8 ÷ 1/8 |
3/8 − 1/8 = 1/4 (0.25 as a decimal).
Write both over a common denominator, subtract the numerators and simplify. The working above shows each step.
Other fractions, mixed numbers or up to five terms: use the Fraction Calculator.