Subtract 54/20 from 30/18
1st number: 1 12/18, 2nd number: 2 14/20
30/18 - 54/20 is -31/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
30/18 = 30 × 10/18 × 10 = 300/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
54/20 = 54 × 9/20 × 9 = 486/180 - Subtract the two like fractions:
300/180 - 486/180 = 300 - 486/180 = -186/180 - After reducing the fraction, the answer is -31/30
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