Subtract 54/49 from 9/20
1st number: 9/20, 2nd number: 1 5/49
9/20 - 54/49 is -639/980.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
9/20 = 9 × 49/20 × 49 = 441/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
54/49 = 54 × 20/49 × 20 = 1080/980 - Subtract the two like fractions:
441/980 - 1080/980 = 441 - 1080/980 = -639/980
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