Subtract 40/84 from 54/18
1st number: 3 0/18, 2nd number: 40/84
54/18 - 40/84 is 53/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
54/18 = 54 × 14/18 × 14 = 756/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
40/84 = 40 × 3/84 × 3 = 120/252 - Subtract the two like fractions:
756/252 - 120/252 = 756 - 120/252 = 636/252 - After reducing the fraction, the answer is 53/21
- In mixed form: 211/21
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