Final answer:
To subtract mixed numbers, convert them to improper fractions, subtract the fractions, and simplify the result.
Step-by-step explanation:
To subtract mixed numbers, we need to first convert the mixed numbers to improper fractions.
15 3/10 can be written as (15 * 10 + 3)/10 = 153/10.
4/5 can be written as 4/5.
Now subtract the fractions: (153/10) - (4/5) = (15 * 3 - 4 * 2)/10*5 = 37/50.
Lastly, simplify the fraction to its simplest form. In this case, the answer is already in simplest form. So, the result is 37/50.
Since the numerator is greater than the denominator, it can also be written as the mixed number 0 37/50.
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