Subtract 3/15 from 84/40
1st number: 2 4/40, 2nd number: 3/15
84/40 - 3/15 is 19/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
84/40 = 84 × 3/40 × 3 = 252/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
3/15 = 3 × 8/15 × 8 = 24/120 - Subtract the two like fractions:
252/120 - 24/120 = 252 - 24/120 = 228/120 - After reducing the fraction, the answer is 19/10
- In mixed form: 19/10
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