Alexis bought 4&5/8

Question

litres of milk and drank 1&2/7
litres of it. How much milk was left?

Answer 1

To solve this problem, we need to subtract the amount of milk that Alexis drank from the amount of milk she bought.

First, let's convert the mixed numbers to improper fractions:

4&5/8 = (8*4 + 5) / 8 = 37/8
1&2/7 = (7*1 + 2) / 7 = 9/7

Now, let's subtract the fractions:

37/8 - 9/7 = (37*7 - 9*8) / (8*7) = (259 - 72) / 56 = 187/56

To simplify this fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 11:

187/56 = (11*17) / (7*8) = 187/56 = 17/5

So, there are 17/5 liters of milk left.