Subtract 28/30 from 20/98
20/98 - 28/30 is -536/735.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 98 × 15 = 1470,
20/98 = 20 × 15/98 × 15 = 300/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
28/30 = 28 × 49/30 × 49 = 1372/1470 - Subtract the two like fractions:
300/1470 - 1372/1470 = 300 - 1372/1470 = -1072/1470 - After reducing the fraction, the answer is -536/735
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