Subtract 72/45 from 20/16
1st number: 1 4/16, 2nd number: 1 27/45
20/16 - 72/45 is -7/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
20/16 = 20 × 45/16 × 45 = 900/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
72/45 = 72 × 16/45 × 16 = 1152/720 - Subtract the two like fractions:
900/720 - 1152/720 = 900 - 1152/720 = -252/720 - After reducing the fraction, the answer is -7/20
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