Subtract 54/20 from 28/14
1st number: 2 0/14, 2nd number: 2 14/20
28/14 - 54/20 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
28/14 = 28 × 10/14 × 10 = 280/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
54/20 = 54 × 7/20 × 7 = 378/140 - Subtract the two like fractions:
280/140 - 378/140 = 280 - 378/140 = -98/140 - After reducing the fraction, the answer is -7/10
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