Subtract 54/48 from 20/45
1st number: 20/45, 2nd number: 1 6/48
20/45 - 54/48 is -49/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
20/45 = 20 × 16/45 × 16 = 320/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
54/48 = 54 × 15/48 × 15 = 810/720 - Subtract the two like fractions:
320/720 - 810/720 = 320 - 810/720 = -490/720 - After reducing the fraction, the answer is -49/72
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