Subtract 20/16 from 28/45
1st number: 28/45, 2nd number: 1 4/16
28/45 - 20/16 is -113/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
28/45 = 28 × 16/45 × 16 = 448/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
20/16 = 20 × 45/16 × 45 = 900/720 - Subtract the two like fractions:
448/720 - 900/720 = 448 - 900/720 = -452/720 - After reducing the fraction, the answer is -113/180
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