Ahmad received some pocket money. He spent 2/5 of his pocket money on Monday and 1/4 of his pocket money on Tuesday. What fraction of his pocket money does Ahmad have left?
Show Worked Solution
Worked Solution
Step 1: Find the total fraction of pocket money Ahmad spent.
Add 2/5 and 1/4.
LCD of 5 and 4 = 20.
Step 2: Convert to equivalent fractions.
2/5 = 8/20
1/4 = 5/20
Step 3: Add the two fractions.
8/20 + 5/20 = 13/20 spent
Step 4: Subtract from 1 whole to find the amount left.
1 − 13/20 = 20/20 − 13/20 = 7/20
Ahmad has 7/20 of his pocket money left.
Correct answer: 7/20
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