express 4/5-�ã13 plz
To express the subtraction of 4/5 and 13, we need to find a common denominator for the fractions so that we can subtract them.
Step 1: Find a common denominator:
The denominators of the fractions are 5 and 1. To find the common denominator, we need to find the least common multiple (LCM) of the denominators, which is 5.
Step 2: Convert the fractions to have the same denominator:
To do this, we need to multiply the numerator and denominator of each fraction by a factor that equals the common denominator (5).
For 4/5:
Numerator = 4 * 1 = 4
Denominator = 5 * 1 = 5
For 13:
Numerator = 13 * 5 = 65
Denominator = 1 * 5 = 5
Now, the expression becomes (4/5) - (65/5).
Step 3: Subtract the fractions:
Subtracting fractions with the same denominator is easy. We subtract the numerators and keep the denominator.
(4/5) - (65/5) = (4 - 65) / 5 = -61/5.
Therefore, the expression 4/5 - 13 is equal to -61/5.