Subtract 20/84 from 54/15
1st number: 3 9/15, 2nd number: 20/84
54/15 - 20/84 is 353/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
54/15 = 54 × 28/15 × 28 = 1512/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Subtract the two like fractions:
1512/420 - 100/420 = 1512 - 100/420 = 1412/420 - After reducing the fraction, the answer is 353/105
- In mixed form: 338/105
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