A cafe had [tex]\frac{15}{16}[/tex] of a crate of milk at the start of the day.

During the day, the cafe used [tex]\frac{1}{5}[/tex] of this milk.

How much milk is left at the end of the day?



Answer :

Certainly! Let's break down and understand the problem step by step:

### Step 1: Initial Amount of Milk

The cafe started the day with [tex]\(\frac{15}{16}\)[/tex] of a crate of milk. We can express this as:

[tex]\[ \text{Milk Initial} = \frac{15}{16} \][/tex]

### Step 2: Amount of Milk Used

During the day, the cafe used [tex]\(\frac{1}{5}\)[/tex] of the milk it initially had. So, we need to calculate how much milk was used:

[tex]\[ \text{Milk Used} = \frac{1}{5} \times \left(\frac{15}{16}\right) = \frac{15}{16} \times \frac{1}{5} = \frac{15 \times 1}{16 \times 5} = \frac{15}{80} \][/tex]

### Step 3: Simplify the Fraction for Milk Used

We simplify the fraction [tex]\(\frac{15}{80}\)[/tex] by finding its greatest common divisor (GCD). The GCD of 15 and 80 is 5, so we divide both the numerator and the denominator by 5:

[tex]\[ \frac{15}{80} = \frac{15 \div 5}{80 \div 5} = \frac{3}{16} \][/tex]

Thus, the milk used during the day is [tex]\(\frac{3}{16}\)[/tex].

### Step 4: Calculate the Remaining Milk

To find out how much milk remains at the end of the day, we subtract the amount of milk used from the initial amount of milk:

[tex]\[ \text{Milk Remaining} = \frac{15}{16} - \frac{3}{16} \][/tex]

Since the fractions have the same denominator, we can directly subtract the numerators:

[tex]\[ \text{Milk Remaining} = \frac{15 - 3}{16} = \frac{12}{16} \][/tex]

### Step 5: Simplify the Fraction for Milk Remaining

Again, we simplify the fraction [tex]\(\frac{12}{16}\)[/tex] by finding its greatest common divisor (GCD). The GCD of 12 and 16 is 4, so we divide both the numerator and the denominator by 4:

[tex]\[ \frac{12}{16} = \frac{12 \div 4}{16 \div 4} = \frac{3}{4} \][/tex]

Thus, the remaining milk at the end of the day is [tex]\(\frac{3}{4}\)[/tex].

### Final Summary

- The initial amount of milk was [tex]\(\frac{15}{16}\)[/tex] (or 0.9375 in decimal form).
- The amount of milk used during the day was [tex]\(\frac{3}{16}\)[/tex] (or 0.2 in decimal form).
- The remaining amount of milk at the end of the day was [tex]\(\frac{3}{4}\)[/tex] (or 0.75 in decimal form).

So, at the end of the day, the cafe has [tex]\(\frac{3}{4}\)[/tex] (0.75) of a crate of milk left.