The problem shown is about subtracting two fractions with different denominators:
2/3 – 8/15
Step 1: Find a common denominator.
The easiest way (as shown) is to multiply the two denominators:
3 × 15 = 45 → So, we’ll use 45 as the common denominator.
Step 2: Convert each fraction to have denominator 45.
- For 2/3: Multiply numerator and denominator by 15 → (2×15)/(3×15) = 30/45
- For 8/15: Multiply numerator and denominator by 3 → (8×3)/(15×3) = 24/45
Step 3: Subtract the numerators, keep the denominator.
30/45 – 24/45 = (30 – 24)/45 = 6/45
Step 4: Simplify the result if possible.
6 and 45 are both divisible by 3 → 6÷3 = 2, 45÷3 = 15 → So, 6/45 simplifies to
2/15
Final Answer:
2/15
Parent Tip: Review the logic above to help your child master the concept of subtracting fractions with different denominators.
