Subtract 40/42 from 54/3
1st number: 18 0/3, 2nd number: 40/42
54/3 - 40/42 is 358/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
54/3 = 54 × 14/3 × 14 = 756/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
40/42 = 40 × 1/42 × 1 = 40/42 - Subtract the two like fractions:
756/42 - 40/42 = 756 - 40/42 = 716/42 - After reducing the fraction, the answer is 358/21
- In mixed form: 171/21
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