Subtract 49/18 from 9/20
1st number: 9/20, 2nd number: 2 13/18
9/20 - 49/18 is -409/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
49/18 = 49 × 10/18 × 10 = 490/180 - Subtract the two like fractions:
81/180 - 490/180 = 81 - 490/180 = -409/180
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