Subtract 49/30 from 28/81
1st number: 28/81, 2nd number: 1 19/30
28/81 - 49/30 is -1043/810.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
28/81 = 28 × 10/81 × 10 = 280/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
49/30 = 49 × 27/30 × 27 = 1323/810 - Subtract the two like fractions:
280/810 - 1323/810 = 280 - 1323/810 = -1043/810
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