Question - Subtraction of Fractions with Common Denominator
Solution:
It looks like the image shows a mathematical expression, "$$\frac{1}{80} - 0.90$$".To solve this, we first need to convert the decimal to a fraction so that we have common denominators. The decimal 0.90 is equivalent to the fraction $$\frac{90}{100}$$. We can simplify this fraction by dividing both the numerator and the denominator by 10, which gives us $$\frac{9}{10}$$.Now, to subtract $$\frac{9}{10}$$ from $$\frac{1}{80}$$, we need a common denominator. The least common denominator of 80 and 10 is 80.Let's convert $$\frac{9}{10}$$ to a fraction with a denominator of 80:$$\frac{9}{10} = \frac{9 \times 8}{10 \times 8} = \frac{72}{80}$$.Now that we have both fractions with a common denominator, we can subtract them:$$\frac{1}{80} - \frac{72}{80} = \frac{1 - 72}{80} = \frac{-71}{80}$$.The final result is $$-\frac{71}{80}$$.
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